Fix typos found by codespell (#9346)

## Summary

Fix typos found by
[codespell](https://github.com/codespell-project/codespell).

## Test Plan

CI tests.

crates/ruff_python_formatter/src/expression/binary_like.rs

@@ -657,7 +657,7 @@ impl<'a> FlatBinaryExpressionSlice<'a> {
 /// The formatting is recursive (with a depth of `O(operators)` where `operators` are operators with different precedences).
 ///
 /// Comments before or after the first operand must be formatted by the caller because they shouldn't be part of the group
-/// wrapping the whole binary chain. This is to avoid that `b * c` expands in the following example because of its trailing comemnt:
+/// wrapping the whole binary chain. This is to avoid that `b * c` expands in the following example because of its trailing comment:
 ///
 /// ```python
 ///

crates/ruff_python_formatter/src/string/mod.rs

@@ -941,7 +941,7 @@ impl UnicodeEscape {
                             }
                         }
                     } else {
-                        // Unterminated escape sequence, dont' normalise it.
+                        // Unterminated escape sequence, don't normalise it.
                         return None;
                     }
                 }