feat: Add LazyFrame.repartition

[ritchie46]

No description provided.

[github-actions]

The uncompressed lib size after this PR is 51.0323 MB.

[codecov]

Codecov Report

❌ Patch coverage is 36.98630% with 46 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.65%. Comparing base (9a5b318) to head (5e19ed1).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
...ates/polars-plan/src/plans/ir/visualization/mod.rs	0.00%	11 Missing ⚠️
crates/polars-plan/src/plans/ir/dot.rs	0.00%	8 Missing ⚠️
crates/polars-plan/src/plans/ir/tree_format.rs	0.00%	8 Missing ⚠️
crates/polars-plan/src/plans/ir/format.rs	50.00%	4 Missing ⚠️
crates/polars-plan/src/plans/visitor/hash.rs	0.00%	4 Missing ⚠️
py-polars/src/polars/lazyframe/frame.py	57.14%	1 Missing and 2 partials ⚠️
crates/polars-plan/src/client/check.rs	0.00%	2 Missing ⚠️
.../polars-plan/src/plans/conversion/dsl_to_ir/mod.rs	0.00%	1 Missing ⚠️
crates/polars-plan/src/plans/ir/inputs.rs	83.33%	1 Missing ⚠️
crates/polars-plan/src/plans/ir/schema.rs	0.00%	1 Missing ⚠️
... and 3 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #25646      +/-   ##
==========================================
+ Coverage   79.45%   79.65%   +0.19%     
==========================================
  Files        1743     1743              
  Lines      240311   240530     +219     
  Branches     3038     3040       +2     
==========================================
+ Hits       190932   191585     +653     
+ Misses      48596    48161     -435     
- Partials      783      784       +1     

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.