feature request - additional exit code - dont reboot, dont run on next boot

right now there are 3 exit codes for scripts 1001,1002,1003.

https://cloudbase-init.readthedocs.io/en/latest/tutorial.html#execution

we would like to see a fourth code. one which does not trigger a reboot but also marks the script as not to be run on next boot.