[`pyupgrade`] Mark `UP008` fix safe if no comments in range (#18683)
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## Summary
Mark `UP008`'s fix safe if it won't delete comments.
## Relevant Issues
Fixes: https://github.com/astral-sh/ruff/issues/18533
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Co-authored-by: Brent Westbrook <36778786+ntBre@users.noreply.github.com>