[request] increase default mem lock limit

Hi,

Running rpcs3 results in the following errors in its log:

```
VM: Failed to lock sudo memory
E {PPU[0x1000000] Thread (main_thread) [0x00b86948]}
VM: Failed to lock sudo memory (addr=0x37100000, size=0x100000).
Consider increasing your system limits.
```

This is easily fixed by editing '/etc/systemd/system.conf'
and setting 'DefaultLimitMEMLOCK=4G' or 'DefaultLimitMEMLOCK=4096M'.

Can this be incorporated into CachyOS-Settings?