chore(ci): Add step to minimize uv cache in CI workflow

[bhimrazy]

Before submitting

• Was this discussed/agreed via a Github issue? (no need for typos and docs improvements)
• Did you read the contributor guideline, Pull Request section?
• Did you make sure to update the docs?
• Did you write any new necessary tests?

What does this PR do?

Add step to minimize uv cache in CI workflow

Ref:

• https://github.com/Lightning-AI/pytorch-lightning/blob/master/.github/workflows/ci-tests-pytorch.yml
• https://docs.astral.sh/uv/guides/integration/github/#caching

PR review

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84%. Comparing base (b50d428) to head (42bc3ed).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@         Coverage Diff         @@
##           main   #713   +/-   ##
===================================
  Coverage    84%    84%           
===================================
  Files        52     52           
  Lines      7277   7277           
===================================
+ Hits       6125   6128    +3     
+ Misses     1152   1149    -3     

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