Use optional parentheses for tuples in return statements

[MichaReiser]

Summary

This PR aligns our tuple formatting in return statements with black.

Black avoids parenthesizing tuples in return statements if breaking by any other parentheses
can make it fit.

The same behavior applies to yield, but implementing it is more involved because yield is an expression (and can be nested). I quickly checked, and implementing it didn't increase similarity for any project. I guess, yielding a tuple isn't as common, so I removed the implementation again.

Test Plan

Added tests

[MichaReiser]

Current dependencies on/for this PR:

• main
  • PR Use optional parentheses for tuples in return statements #6875 👈

This comment was auto-generated by Graphite.

[codspeed-hq]

CodSpeed Performance Report

Merging #6875 will not alter performance

_{⚠️ No base runs were found}

_{Falling back to comparing return-tuple-parentheses (19c2c62) with main (f33277a)}

Summary

✅ 16 untouched benchmarks