[Bug]: check_permissions enforces ownership of folders

### User story

As a user, I might not want to make the LGSM user owner of the LGSM_SERVERFILES directory, but only give it sufficient permissions using group

### Game

Garrys Mod

### Linux distro

Ubuntu 22.04, Ubuntu 20.04, Ubuntu 18.04, Ubuntu 16.04, Debian 12, Debian 11, Debian 10, Debian 9, RedHat 9, RedHat 8, RedHat 7

### Command

command: update, command: install

### Further information

I'm running a container that uses lgsm within a docker cluster. The server files directory is mounted as a volume to decrease server reboot time. Local-Path docker volumes currently don't support (automatically) setting the owner of the volume mount directory, but only setting the group. However, check_permissions still requires, that the owner of the server files directory is the active user. Currently I can work around this by nesting the server files directory in another directory. As lgsm will create this directory on demand, it will also be the owner of it.

### Relevant log output

```shell
[ FAIL ] Updating LinuxGSM gmodserver: Ownership issues found
Information! The current user (steam) does not have ownership of the following files:
tee: /home/steam/log/script/gmodserver-script.log: No such file or directory
User Group File
root steam /home/steam/serverfiles
Information! please see https://docs.linuxgsm.com/support/faq#fail-starting-game-server-permission-issues-found
```

### Steps to reproduce

1. create a directory, where the owner is another user, e.g. root
2. allow the current user (e.g. steam) to use the directory by adding setting their group
3. set `LGSM_SERVERFILES` to the path of the directory
4. try to run lgsm install or update