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

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

Author: pre-commit-ci[bot]

testing/test_argparsing_repr_fix.py

@@ -62,4 +62,4 @@ def test_repr_with_dest_set(self) -> None:
 
         # Should contain the dest
         assert "dest: 'valid_dest'" in repr_str
-        assert "<not set>" not in repr_str
+        assert "<not set>" not in repr_str