Fix the CodeCov issue with compat-check actions

[maliasadi]

This PR fixes the CodeCov job failures in compat-check actions by

• Update the version of codecov-action from v3 to v4
• Inherit the codecov token secret to extend the visibility of the token for compat-check actions
• Suppress no-test ExitCode 5 from pytests for test_native_mcm labels until the next release of Lightning.

[sc-61507]

[github-actions]

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Please edit .github/CHANGELOG.md with:

• A one-to-two sentence description of the change. You may include a small working example for new features.
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.43%. Comparing base (6d374fd) to head (085239f).

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #682       +/-   ##
===========================================
+ Coverage   85.19%   97.43%   +12.23%     
===========================================
  Files          64      173      +109     
  Lines        9277    22617    +13340     
===========================================
+ Hits         7904    22036    +14132     
+ Misses       1373      581      -792     

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[mlxd]

Thanks @maliasadi
Just 2 comments:

[AmintorDusko]

Looks good to me! Thank you, @maliasadi!