Use the LinterSettings's tab size when expanding indent

[hoel-bagard]

Summary

In the logical_lines's expand_indent , respect the LinterSettings::tab_size setting instead of hardcoding the size of tabs to 8.

Also see this conversation

Test Plan

Tested by running cargo test

[github-actions]

ruff-ecosystem results

Linter (stable)

✅ ecosystem check detected no linter changes.

Linter (preview)

✅ ecosystem check detected no linter changes.

[charliermarsh]

Thanks!