fix: add missing blank line after end of class

Author: mariajgrimaldi

eox_core/api/support/v1/serializers.py

@@ -113,6 +113,7 @@ def update(self, instance, validated_data):
         instance.save()
         return instance
 
+
 class OauthApplicationUserSerializer(serializers.Serializer):
     """
     Oauth Application owner serializer.