Dependabot: remove non-existent registry

[shenanigansd]

No description provided.

[codspeed-hq]

Merging this PR will not alter performance

✅ 2 untouched benchmarks

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_{Comparing shenanigansd-patch-1 (ec0594a) with main (f762647)}

[Copilot]

Pull request overview

Removes an invalid Dependabot registry reference from the configuration so Dependabot can run without referencing a non-existent registry.

Changes:

• Removed the registries: [python-cloudsmith] entry from the uv ecosystem update configuration.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.29%. Comparing base (f762647) to head (ec0594a).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #148   +/-   ##
=======================================
  Coverage   88.29%   88.29%           
=======================================
  Files           3        3           
  Lines          94       94           
=======================================
  Hits           83       83           
  Misses         11       11           

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