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

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

src/pytest_subtests/plugin.py

@@ -226,7 +226,7 @@ def test(
     ) -> Generator[None, None, None]:
         # Hide from tracebacks.
         __tracebackhide__ = True
-    
+
         start = time.time()
         precise_start = time.perf_counter()
         exc_info = None