Error after updating to v5.0.20
Getting this error with homebridge-camera-ui v5.0.20 and homebridge version v1.4.0 
it crashes homebridge into a restart loop 

```
 Error: spawn /homebridge/node_modules/homebridge-camera-ui/node_modules/ffmpeg-for-homebridge/ffmpeg ENOENT
    at Process.ChildProcess._handle.onexit (node:internal/child_process:282:19)
    at onErrorNT (node:internal/child_process:477:16)
    at processTicksAndRejections (node:internal/process/task_queues:83:21)
[4/20/2022, 6:31:08 PM] Error: spawn /homebridge/node_modules/homebridge-camera-ui/node_modules/ffmpeg-for-homebridge/ffmpeg ENOENT
    at Process.ChildProcess._handle.onexit (node:internal/child_process:282:19)
    at onErrorNT (node:internal/child_process:477:16)
    at processTicksAndRejections (node:internal/process/task_queues:83:21)
```
