docs(config): add uv provider description

[Lee-W]

Description

Add missing documentation of uv provider which was introduced in #1351

Checklist

• Add test cases to all the changes you introduce
• Run poetry all locally to ensure this change passes linter check and test
• Test the changes on the local machine manually
• Update the documentation for the changes

Expected behavior

Steps to Test This Pull Request

Additional context

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.61%. Comparing base (120d514) to head (83cc5b8).
Report is 571 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1362      +/-   ##
==========================================
+ Coverage   97.33%   97.61%   +0.27%     
==========================================
  Files          42       56      +14     
  Lines        2104     2645     +541     
==========================================
+ Hits         2048     2582     +534     
- Misses         56       63       +7     

Flag	Coverage Δ
unittests	97.61% <ø> (+0.27%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.