chore: Update GitHub Actions versions for continuous integration and …

[teseoch]

…coverage workflows

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.85%. Comparing base (9629b82) to head (bdd8f32).
Report is 11 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #78      +/-   ##
==========================================
- Coverage   87.54%   83.85%   -3.70%     
==========================================
  Files          48       53       +5     
  Lines        2047     2861     +814     
  Branches        0      331     +331     
==========================================
+ Hits         1792     2399     +607     
- Misses        255      443     +188     
- Partials        0       19      +19     

Flag	Coverage Δ
polysolve	83.85% <ø> (-3.70%)	⬇️

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