Fix formatting in argparse.py

Signed-off-by: Emiliano Suñé <emiliano.sune@gmail.com>

aries_cloudagent/config/argparse.py

@@ -647,7 +647,7 @@ def add_arguments(self, parser: ArgumentParser):
                 nargs="?",
                 metavar="<universal_resolver_token>",
                 env_var="ACAPY_UNIVERSAL_RESOLVER_BEARER_TOKEN",
-                help="Bearer token if universal resolver instance requires authentication.",
+                help="Bearer token if universal resolver instance requires authentication.", # noqa: E501
             ),
         )