[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_pytester.py

@@ -839,7 +839,6 @@ def test_two():
 def test_pytester_subprocess_with_string_plugins(pytester: Pytester) -> None:
     """Test that pytester.runpytest_subprocess is OK with named (string)
     `.plugins`."""
-
     pytester.plugins = ["pytester"]
 
     result = pytester.runpytest_subprocess()