ci: temporarily switch to ubuntu-22.04

[PProfizi]

While investigating #907

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.16%. Comparing base (3c82070) to head (b2bfad8).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #910   +/-   ##
=======================================
  Coverage   85.16%   85.16%           
=======================================
  Files          52       52           
  Lines        5217     5217           
=======================================
  Hits         4443     4443           
  Misses        774      774           

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