Implement the fix_power_op_line_length preview style

[MichaReiser]

Summary

Implements the fix_power_op_line_length preview style.

The main change is to add a space around the power operator if the binary expression splits over multiple lines:

x = (
    long 
    ** 3
)

# instead of
x = (
    long
    **3
)

Closes #8938

Test Plan

See deleted snapshot file. The similarity index remains unchanged.

[MichaReiser]

Current dependencies on/for this PR:

• main
  • PR Implement the fix_power_op_line_length preview style #8947 👈

This stack of pull requests is managed by Graphite.

[github-actions]

ruff-ecosystem results

Formatter (stable)

✅ ecosystem check detected no format changes.

Formatter (preview)

✅ ecosystem check detected no format changes.