add slurm 22.05.6

[simonpintarelli]

copy directory from 22.05.5 and add an entry in version matrix in github workflows.

[bcumming]

Looks good to me! Thanks Simon.

For the future: the slurm version 22.05.6 only appears inside one of the new files in one location - it might be possible to template this so that we don't need a new directory for each version of SLURM that we support.

[jpcoles]

Looks good to me! Thanks Simon.

For the future: the slurm version 22.05.6 only appears inside one of the new files in one location - it might be possible to template this so that we don't need a new directory for each version of SLURM that we support.

Hi Ben,

I made the design decision to keep separate directories to explicitly avoid trying to template anything. I wanted to keep it stupidly simple where each version was guaranteed to continue working. Slurm tends to introduce or deprecate features and having each version completely independent means we don't have to worry about maintaining backward compatibility or have rules to account for these changes. Furthermore, it's not much work to copy a few files even if they do end up being the same. This is now the first time in a year that we've had to add another version. From the user's perspective all they need to do is say with version of slurm they want.