chore: relax uv, fix unleash e2e test stability

[toddbaert]

Still trying to fix some race conditions here.

[gemini-code-assist]

Code Review

This pull request updates the integration tests for the Unleash provider by configuring database pool limits to prevent concurrent migration errors and removing a redundant postgres.start() call within a context manager. Additionally, the required version for uv in pyproject.toml has been updated to >=0.10.0. I have no feedback to provide.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.72%. Comparing base (7e18bc1) to head (29bad68).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #375      +/-   ##
==========================================
+ Coverage   90.16%   98.72%   +8.56%     
==========================================
  Files           1        3       +2     
  Lines         122      157      +35     
==========================================
+ Hits          110      155      +45     
+ Misses         12        2      -10     

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[toddbaert]

/gemini review

[gemini-code-assist]

Code Review

This pull request enhances the Unleash integration tests by implementing a retry mechanism for container startup to mitigate database migration race conditions. It refactors health check and logging logic into helper functions and updates the uv version requirement in pyproject.toml. A review comment identifies a redundant container.start() call within a context manager, suggesting its removal for consistency and brevity.