Homebridge won't update to NodeJS v18.12.0 / v18.12.1 on Ubuntu 20.04?
### Current Situation

Homebridge is telling me to update NodeJS to the latest version (v18.12.1). However, my Ubuntu 20.04 system refuses to see a newer version than v18.11.0 (see log output). Any idea how to solve this, preferably without upgrading Ubuntu to a newer version?

### Logs

```markdown
kraken@scylla:~$ sudo hb-service update-node
ℹ Updating Node.js from v18.11.0 to v18.12.1...
ℹ Updating from NodeSource...
Hit:1 http://old-releases.ubuntu.com/ubuntu impish InRelease
Hit:2 http://old-releases.ubuntu.com/ubuntu impish-security InRelease     
Get:3 https://download.docker.com/linux/ubuntu hirsute InRelease [48,9 kB]
Hit:4 https://deb.nodesource.com/node_18.x impish InRelease
Fetched 48,9 kB in 1s (56,9 kB/s)
Reading package lists... Done

## Installing the NodeSource Node.js 18.x repo...


## Populating apt-get cache...

+ apt-get update
Hit:1 https://deb.nodesource.com/node_18.x impish InRelease
Get:2 https://download.docker.com/linux/ubuntu hirsute InRelease [48,9 kB]      
Hit:3 http://old-releases.ubuntu.com/ubuntu impish InRelease                                
Hit:4 http://old-releases.ubuntu.com/ubuntu impish-security InRelease
Fetched 48,9 kB in 1s (88,5 kB/s)
Reading package lists... Done

## Confirming "impish" is supported...

+ curl -sLf -o /dev/null 'https://deb.nodesource.com/node_18.x/dists/impish/Release'

## Adding the NodeSource signing key to your keyring...

+ curl -s https://deb.nodesource.com/gpgkey/nodesource.gpg.key | gpg --dearmor | tee /usr/share/keyrings/nodesource.gpg >/dev/null

## Creating apt sources list file for the NodeSource Node.js 18.x repo...

+ echo 'deb [signed-by=/usr/share/keyrings/nodesource.gpg] https://deb.nodesource.com/node_18.x impish main' > /etc/apt/sources.list.d/nodesource.list
+ echo 'deb-src [signed-by=/usr/share/keyrings/nodesource.gpg] https://deb.nodesource.com/node_18.x impish main' >> /etc/apt/sources.list.d/nodesource.list

## Running `apt-get update` for you...

+ apt-get update
Hit:1 http://old-releases.ubuntu.com/ubuntu impish InRelease
Get:2 https://download.docker.com/linux/ubuntu hirsute InRelease [48,9 kB]                       
Hit:3 http://old-releases.ubuntu.com/ubuntu impish-security InRelease                                        
Hit:4 https://deb.nodesource.com/node_18.x impish InRelease                                                  
Fetched 48,9 kB in 0s (105 kB/s)                     
Reading package lists... Done

## Run `sudo apt-get install -y nodejs` to install Node.js 18.x and npm
## You may also need development tools to build native addons:
     sudo apt-get install gcc g++ make
## To install the Yarn package manager, run:
     curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor | sudo tee /usr/share/keyrings/yarnkey.gpg >/dev/null
     echo "deb [signed-by=/usr/share/keyrings/yarnkey.gpg] https://dl.yarnpkg.com/debian stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
     sudo apt-get update && sudo apt-get install yarn


Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
nodejs is already the newest version (18.11.0-deb-1nodesource1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
ℹ Restarting Homebridge Service...
✔ Homebridge Restarted
```


### Configuration

```json
-
```


### Environment

- OS: Ubuntu 20.04
- Software: Homebridge v1.6.0
- Node: v18.11.0
- npm: v8.19.3


### Process Supervisor

hb-service

### Additional Context

_No response_