Community maintained Docker config for the knot server

Add `authorized_keys_command.conf` with correct git directory #42

Closed ionchy.ca
targeting main
Closed opened by and assigned to ionchy.ca
targeting main

I couldn't push or pull from any repositories until I set -git-dir following the instructions in knot-hosting, so this adds the /etc/ssh/sshd_config.d/authorized_keys_command.conf file to rootfs.

This pull request has no versions submitted yet.