[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

data_structures/stacks/balanced_parentheses.py

@@ -19,7 +19,9 @@ def balanced_parentheses(parentheses: str) -> bool:
     for bracket in parentheses:
         if bracket in bracket_pairs:
             stack.push(bracket)
-        elif bracket in (")", "]", "}") and (stack.is_empty() or bracket_pairs[stack.pop()] != bracket):
+        elif bracket in (")", "]", "}") and (
+            stack.is_empty() or bracket_pairs[stack.pop()] != bracket
+        ):
             return False
     return stack.is_empty()