[py]: use correct logic for is_local_file #12474

Author: symonk

py/selenium/webdriver/remote/file_detector.py

@@ -47,5 +47,6 @@ class LocalFileDetector(FileDetector):
     def is_local_file(self, *keys: AnyKey) -> Optional[str]:
         file_path = "".join(keys_to_typing(keys))
         with suppress(OSError):
-            return Path(file_path).is_file()
+            _ = Path(file_path).is_file()
+            return file_path