fix formatting in valkey module

Signed-off-by: Daria Korenieva <daric2612@gmail.com>

Author: daric93

modules/valkey/testcontainers/valkey/__init__.py

@@ -101,4 +101,3 @@ def get_exposed_port(self) -> int:
             port: Exposed port number.
         """
         return int(super().get_exposed_port(self.port))
-