Upgrade permissions and Codecov action and add installation step

[rofrano]

Made the following changes

• Updated the GitHub Action permissions to be explicit
• Updated Codecov action to v5
• Added package installation step for missing packages that CodeCov requires but does not document

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.47%. Comparing base (79d3783) to head (223decc).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #42   +/-   ##
=======================================
  Coverage   97.47%   97.47%           
=======================================
  Files           9        9           
  Lines         317      317           
=======================================
  Hits          309      309           
  Misses          8        8           

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