Update actions/checkout digest to 3d3c42e

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout (changelog)	action	digest	9c091bb → 3d3c42e

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.22%. Comparing base (b5d4850) to head (78f74ff).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #325   +/-   ##
=======================================
  Coverage   93.22%   93.22%           
=======================================
  Files          24       24           
  Lines        2125     2125           
=======================================
  Hits         1981     1981           
  Misses        144      144           

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