Clean up before style checks

[akuzm]

Do git reset in actions that use git diff, otherwise the errors from the previous checks get mixed into the output of the subsequent checks.

Disable-check: force-changelog-file

[github-actions]

@gayyappan, @fabriziomello: please review this pull request.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.15%. Comparing base (59f50f2) to head (d788f5f).
Report is 918 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8009      +/-   ##
==========================================
+ Coverage   80.06%   82.15%   +2.08%     
==========================================
  Files         190      251      +61     
  Lines       37181    46284    +9103     
  Branches     9450    11613    +2163     
==========================================
+ Hits        29770    38023    +8253     
- Misses       2997     3654     +657     
- Partials     4414     4607     +193     

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