Update PackageInfo.g and CI suite

[stertooy]

This PR updates all actions used in the CI workflow to the latest version, and makes use of the new Dependencies.NeededSystemPackages field in PackageInfo.g to simplify the CI workflow(s).

Remarks:

• PackageInfo.g claims compatibility with GAP 4.11, but does not test this. Is this intended?
• I changed the dependencies from graphviz texlive preview-latex-style dot2tex to dot2tex preview-latex-style texlive-pictures. I removed graphviz because it is a dependency of dot2tex anyway. I added texlive-pictures since this was missing (it is only recommended by dot2tex, not needed, and in CI tests we often install packages using --no-install-recommends). Finally I removed texlive, since this doesn't seem to be needed at all.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.02%. Comparing base (ef849bd) to head (1d9e17b).
⚠️ Report is 17 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #37      +/-   ##
==========================================
- Coverage   87.86%   87.02%   -0.84%     
==========================================
  Files          12       12              
  Lines         890      848      -42     
==========================================
- Hits          782      738      -44     
- Misses        108      110       +2     

see 6 files with indirect coverage changes

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[fingolfin]

@ZachNewbery hi there, are you still interested in maintaining this package? If so it'd be great

If not, or if you are low on time and need help, perhaps @olexandr-konovalov could become (a co-)maintainer? Or perhaps you'd like to add "The GAP Team" as a co-maintainer?

[ZachNewbery]

Hey @fingolfin yeah running quite low on time these days with launches, I'll add The GAP team and Oleksandr as co-maintainers.

[olexandr-konovalov]

Thanks @fingolfin @ZachNewbery happy to be added!