`CL_OUT_OF_HOST_MEMORY` when run as systemd service
**Describe the bug**
Xmrig opencl errors when run as a systemd service. This error does not occur when not run as a systemd service, e.g. in a terminal.

**To Reproduce**
Run xmrig as a systemd service:
```service
[Unit]
Description=Nice XMRig Daemon
After=network-online.target

[Service]
Type=forking
ExecStart=/usr/bin/xmrig --opencl -u x+300000 -o 1.2.3.4:1234 --background --syslog
LimitNICE=19
Restart=on-failure
RestartSec=20s
StartLimitInterval=30min
StartLimitBurst=30

[Install]
WantedBy=multi-user.target
```

**Expected behavior**
GPU utilization

**Required data**
 - XMRig version
```
XMRig 6.21.2
 built on May 18 2024 with GCC 14.1.1
 features: 64-bit AES

libuv/1.48.0
OpenSSL/3.3.0
hwloc/2.10.0
```
 - OS: Arch Linux
 - For GPU related issues: 
```
$ clinfo
Number of platforms:                             2
  Platform Profile:                              FULL_PROFILE
  Platform Version:                              OpenCL 2.1 AMD-APP.dbg (3602.0)
  Platform Name:                                 AMD Accelerated Parallel Processing
  Platform Vendor:                               Advanced Micro Devices, Inc.
  Platform Extensions:                           cl_khr_icd cl_amd_event_callback
  Platform Profile:                              FULL_PROFILE
  Platform Version:                              OpenCL 3.0
  Platform Name:                                 rusticl
  Platform Vendor:                               Mesa/X.org
  Platform Extensions:                           cl_khr_byte_addressable_store cl_khr_create_command_queue cl_khr_expect_assume cl_khr_extended_versioning cl_khr_icd cl_khr_il_program cl_khr_spirv_no_integer_wrap_decoration cl_khr_suggested_local_work_size


  Platform Name:                                 AMD Accelerated Parallel Processing
Number of devices:                               1
  Device Type:                                   CL_DEVICE_TYPE_GPU
  Vendor ID:                                     1002h
  Board name:                                    AMD Radeon RX 6700 XT
  Device Topology:                               PCI[ B#45, D#0, F#0 ]
  Max compute units:                             20
  Max work items dimensions:                     3
    Max work items[0]:                           1024
    Max work items[1]:                           1024
    Max work items[2]:                           1024
  Max work group size:                           256
  Preferred vector width char:                   4
  Preferred vector width short:                  2
  Preferred vector width int:                    1
  Preferred vector width long:                   1
  Preferred vector width float:                  1
  Preferred vector width double:                 1
  Native vector width char:                      4
  Native vector width short:                     2
  Native vector width int:                       1
  Native vector width long:                      1
  Native vector width float:                     1
  Native vector width double:                    1
  Max clock frequency:                           2855Mhz
  Address bits:                                  64
  Max memory allocation:                         10937905968
  Image support:                                 Yes
  Max number of images read arguments:           128
  Max number of images write arguments:          8
  Max image 2D width:                            16384
  Max image 2D height:                           16384
  Max image 3D width:                            16384
  Max image 3D height:                           16384
  Max image 3D depth:                            8192
  Max samplers within kernel:                    16
  Max size of kernel argument:                   1024
  Alignment (bits) of base address:              1024
  Minimum alignment (bytes) for any datatype:    128
  Single precision floating point capability
    Denorms:                                     Yes
    Quiet NaNs:                                  Yes
    Round to nearest even:                       Yes
    Round to zero:                               Yes
    Round to +ve and infinity:                   Yes
    IEEE754-2008 fused multiply-add:             Yes
  Cache type:                                    Read/Write
  Cache line size:                               128
  Cache size:                                    16384
  Global memory size:                            12868124672
  Constant buffer size:                          10937905968
  Max number of constant args:                   8
  Local memory type:                             Scratchpad
  Local memory size:                             65536
  Max pipe arguments:                            16
  Max pipe active reservations:                  16
  Max pipe packet size:                          2347971376
  Max global variable size:                      10937905968
  Max global variable preferred total size:      12868124672
  Max read/write image args:                     64
  Max on device events:                          1024
  Queue on device max size:                      8388608
  Max on device queues:                          1
  Queue on device preferred size:                262144
  SVM capabilities:
    Coarse grain buffer:                         Yes
    Fine grain buffer:                           Yes
    Fine grain system:                           No
    Atomics:                                     No
  Preferred platform atomic alignment:           0
  Preferred global atomic alignment:             0
  Preferred local atomic alignment:              0
  Kernel Preferred work group size multiple:     32
  Error correction support:                      0
  Unified memory for Host and Device:            0
  Profiling timer resolution:                    1
  Device endianess:                              Little
  Available:                                     Yes
  Compiler available:                            Yes
  Execution capabilities:
    Execute OpenCL kernels:                      Yes
    Execute native function:                     No
  Queue on Host properties:
    Out-of-Order:                                No
    Profiling :                                  Yes
  Queue on Device properties:
    Out-of-Order:                                Yes
    Profiling :                                  Yes
  Platform ID:                                   0x761ab2c05010
  Name:                                          gfx1030
  Vendor:                                        Advanced Micro Devices, Inc.
  Device OpenCL C version:                       OpenCL C 2.0
  Driver version:                                3602.0 (HSA1.1,LC)
  Profile:                                       FULL_PROFILE
  Version:                                       OpenCL 2.0
  Extensions:                                    cl_khr_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_fp16 cl_khr_gl_sharing cl_amd_device_attribute_query cl_amd_media_ops cl_amd_media_ops2 cl_khr_image2d_from_buffer cl_khr_subgroups cl_khr_depth_images cl_amd_copy_buffer_p2p cl_amd_assembly_program


  Platform Name:                                 rusticl
Number of devices:                               0
```


**Additional context**
```log
opencl   use profile  rx  (2 threads) scratchpad 2048 KB
|  # | GPU |  BUS ID | INTENSITY | WSIZE | MEMORY | NAME
|  0 |   0 | 2d:00.0 |       320 |     8 |    640 | AMD Radeon RX 6700 XT (gfx1031)
|  1 |   0 | 2d:00.0 |       320 |     8 |    640 | AMD Radeon RX 6700 XT (gfx1031)
opencl   error CL_MEM_OBJECT_ALLOCATION_FAILURE when calling clCreateBuffer with buffer size 2181038080
opencl   error CL_MEM_OBJECT_ALLOCATION_FAILURE when calling clCreateBuffer with buffer size 2181038080
opencl   error CL_OUT_OF_HOST_MEMORY when calling clCreateCommandQueueWithProperties
opencl   thread #0 failed with error CL_OUT_OF_HOST_MEMORY
opencl   thread #0 self-test failed
opencl   error CL_OUT_OF_HOST_MEMORY when calling clCreateCommandQueueWithProperties
opencl   thread #1 failed with error CL_OUT_OF_HOST_MEMORY
opencl   thread #1 self-test failed
opencl   disabled (failed to start threads)
```

I have 32GB host memory.
