Add uv badge and badge tests

[nathanjmcdougall]

No description provided.

[codspeed-hq]

CodSpeed Performance Report

Merging #460 will not alter performance

_{Comparing 458-implement-usethis-badge-uv (83491ac) with main (0f8682c)}

Summary

✅ 1 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.41%. Comparing base (b06af8c) to head (83491ac).
Report is 3 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #460      +/-   ##
==========================================
+ Coverage   97.30%   97.41%   +0.11%     
==========================================
  Files          82       82              
  Lines        3745     3756      +11     
==========================================
+ Hits         3644     3659      +15     
+ Misses        101       97       -4     

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