Provide packages for all Slurm versions

[pshunter]

Hi,
unless I missed it, it seems that provided packages (through e.g. galaxy repo) only match Slurm versions found in official distribution releases.
Unfortunately, the calendar for distributions releases and Slurm releases does not match and some Slurm versions get skipped.
Slurm can be upgraded without being shut down provided that only one release maximum is skipped. E.g. clients 20.11, 21.08 and of course 22.05 can work with a 22.05 controller. Sometimes more than one Slurm release is skipped between official distributions. This is a minor problem for Debian because Sid always gets updated quickly and everything can be found in snapshot.debian.org. These packages also usually work on Ubuntu.

In the end I'm always able to find packages to do a seamless upgrade. Last bit missing are drmaa packages matching Slurm releases (libslurmXX). For now I need to rebuild it should the case arise that my target release is not part of an official distribution.

Thank you,
J.C.H