Update actions/checkout digest to fbc6f39

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout (changelog)	action	digest	08c6903 → fbc6f39

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.37%. Comparing base (3a1f33e) to head (52b8850).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #59   +/-   ##
=======================================
  Coverage   58.37%   58.37%           
=======================================
  Files           4        4           
  Lines         358      358           
=======================================
  Hits          209      209           
  Misses        149      149           

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