minor: ruff format

Tabs -> spaces

src/user/exceptions.py

@@ -11,13 +11,13 @@ from fastapi import HTTPException, status
 
 
 class UserNotFoundException(HTTPException):
-	def __init__(self, user_id: Optional[int] = None) -> None:
-		detail = (
-			"User not found"
-			if user_id is None
-			else f"User with ID '{user_id}' was not found."
-		)
-		super().__init__(
-			status_code=status.HTTP_404_NOT_FOUND,
-			detail=detail,
-		)
+    def __init__(self, user_id: Optional[int] = None) -> None:
+        detail = (
+            "User not found"
+            if user_id is None
+            else f"User with ID '{user_id}' was not found."
+        )
+        super().__init__(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=detail,
+        )