feat(cubesql): Allow grouped joins with SQL push down

[MazterQyou]

Check List

• Tests have been run in packages where changes have been made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

Description of Changes Made

This PR adds support for joins when both sides are grouped to be used with SQL push down. Related test is included.

[codecov]

Codecov Report

❌ Patch coverage is 92.03822% with 25 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.03%. Comparing base (6271520) to head (3d81b3d).
⚠️ Report is 28 commits behind head on master.

Files with missing lines	Patch %	Lines
...t/cubesql/cubesql/src/compile/engine/df/wrapper.rs	83.84%	21 Missing ⚠️
.../cubesql/src/compile/rewrite/rules/wrapper/join.rs	97.27%	3 Missing ⚠️
rust/cubesql/cubesql/src/compile/mod.rs	97.95%	1 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@ ## master #10234 +/- ## =========================================== + Coverage 55.09% 78.03% +22.93%  =========================================== Files 221 468 +247 Lines 17109 91663 +74554 Branches 3498 3498 =========================================== + Hits 9427 71530 +62103  - Misses 7184 19635 +12451  Partials 498 498 

Flag	Coverage Δ
cube-backend	55.09% <ø> (ø)
cubesql	83.29% <92.03%> (?)

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.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.