Add Debian support

1 job for 6-unnatended-landscape-client-configuration in 13 seconds (queued for 9 seconds)
latest
Status Job ID Name Coverage
  Test
failed #14981
shellcheck

00:00:13

 
Name Stage Failure
failed
shellcheck Test
In ./landscape/installagent.sh line 12:
if [ $? -eq 0 ]; then
^-- SC2181: Check exit code directly with e.g. 'if mycmd;', not indirectly with $?.

For more information:
https://www.shellcheck.net/wiki/SC1091 -- Not following: /etc/os-release wa...
https://www.shellcheck.net/wiki/SC2181 -- Check exit code directly with e.g...
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 123