[ruff] add fix safety section (RUF057) (#17483)

The PR add the `fix safety` section for rule `RUF057` (#15584 )

crates/ruff_linter/src/rules/ruff/rules/unnecessary_round.rs

@@ -27,6 +27,12 @@ use ruff_text_size::Ranged;
 /// ```python
 /// a = 1
 /// ```
+///
+/// ## Fix safety
+///
+/// The fix is marked unsafe if it is not possible to guarantee that the first argument of
+/// `round()` is of type `int`, or if the fix deletes comments.
+///
 #[derive(ViolationMetadata)]
 pub(crate) struct UnnecessaryRound;