chore: update Codecov badge

[erikian]

• I have read the contribution documentation for this project.
• I agree to follow the code of conduct that this project follows, as appropriate.
• The changes are appropriately documented (if applicable).
• The changes have sufficient test coverage (if applicable).
• The testsuite passes successfully on my local machine (if applicable).

Summarize your changes:

The badge has been showing Unknown instead of the coverage data since the repo name change.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (c68c032) 92.03% compared to head (52e7df2) 91.80%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1636      +/-   ##
==========================================
- Coverage   92.03%   91.80%   -0.24%     
==========================================
  Files          16       16              
  Lines         854      854              
  Branches      167      167              
==========================================
- Hits          786      784       -2     
- Misses         51       52       +1     
- Partials       17       18       +1     

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[continuous-auth]

🎉 This PR is included in version 18.1.2 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀