Fix flake8 issue of duplicated resource name

submit-api/src/submit_api/resources/staff/package.py

@@ -91,7 +91,7 @@ def get(original_package_id):
     "/<int:package_id>/update-request",
     methods=["POST", "PATCH", "OPTIONS"],
 )
-class PackageUpdateRequest(Resource):
+class PackageUpdateRequests(Resource):
     """Resource for managing a package's update request."""
 
     @staticmethod