Update actions/checkout digest to df4cb1c

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout (changelog)	action	digest	de0fac2 → df4cb1c

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 8.44%. Comparing base (c149cab) to head (b35dcfe).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##              main   #1082      +/-   ##
==========================================
- Coverage     9.56%   8.44%   -1.12%     
+ Complexity    2000    1568     -432     
==========================================
  Files         8194    8194              
  Lines        78320   78320              
  Branches       343     343              
==========================================
- Hits          7492    6617     -875     
- Misses       70641   71541     +900     
+ Partials       187     162      -25     

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