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

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

Author: pre-commit-ci[bot]

src/filelock/_unix.py

@@ -26,6 +26,7 @@ def _release(self) -> None:
 else:  # pragma: win32 no cover
     try:
         import fcntl
+
         _ = (fcntl.lock, fcntl.LOCK_EX, fcntl.LOCK_NB, fcntl.LOCK_UN)
     except (ImportError, AttributeError):
         pass