chore(deps): pin dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	pinDigest	→ df4cb1c
actions/setup-node	action	pinDigest	→ 48b55a0
codecov/codecov-action	action	pinDigest	→ fb8b358

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.40%. Comparing base (de8eade) to head (7f2f096).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #87   +/-   ##
=======================================
  Coverage   78.40%   78.40%           
=======================================
  Files           8        8           
  Lines         500      500           
  Branches      151      152    +1     
=======================================
  Hits          392      392           
  Misses         92       92           
  Partials       16       16           

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