Convert formatting to use ruff instead of yapf + isort (#26247)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

tools/pre_commit/mypy.py

@@ -94,11 +94,15 @@ def group_files(changed_files: list[str]) -> dict[str, list[str]]:
     return file_groups
 
 
-def mypy(targets: list[str], python_version: Optional[str],
-         follow_imports: Optional[str], file_group: str) -> int:
+def mypy(
+    targets: list[str],
+    python_version: Optional[str],
+    follow_imports: Optional[str],
+    file_group: str,
+) -> int:
     """
     Run mypy on the given targets.
-    
+
     Args:
         targets: List of files or directories to check.
         python_version: Python version to use (e.g., "3.10") or None to use
@@ -131,8 +135,9 @@ def main():
     for file_group, changed_files in file_groups.items():
         follow_imports = None if ci and file_group == "" else "skip"
         if changed_files:
-            returncode |= mypy(changed_files, python_version, follow_imports,
-                               file_group)
+            returncode |= mypy(
+                changed_files, python_version, follow_imports, file_group
+            )
     return returncode