Update CI

[glatterf42]

Closes #788. This PR updates the CI to address several minor issues:

• Bump cache-action version
• Bump Codecov-action version using newly added repo secret
• Remove temporary genno pin

We can also use this to solve the current CI failure of the windows-tutorials test. As far as I can see, this failure stems from a cache being used -- at least, the setup-gams step does not fail for the other windows-CI-tests not using a cache for gams. (was resolved by iiasa/actions#12)

How to review

• Read the diff and note that the CI checks all pass.

PR checklist

• Continuous integration checks all ✅
• Add or expand tests; coverage checks both ✅
• [ ] Add, expand, or update documentation. Just CI updates
• [ ] Update release notes. Just CI updates

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (4dae41e) 95.2% compared to head (b26151a) 95.2%.

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #790   +/-   ##
=====================================
  Coverage   95.2%   95.2%           
=====================================
  Files         46      46           
  Lines       4335    4335           
=====================================
  Hits        4130    4130           
  Misses       205     205           

[glatterf42]

@khaeru This PR is ready in principle, the only thing we might want to still adapt is the pre-commit action usage.

[khaeru]

Seems good to go. There is some added whitespace on empty lines in pytest.yaml, I guess unintentional.

I'd vote that we make a general decision on how to invoke pre-commit and then implement it later.

[glatterf42]

Good catch, thanks :)