"aws:" prefix tag issues with MWAA environment

I have an issue following the example for start-stop where Cloud formation is adding tags with 'aws:' prefix along with the tags I provide. When I create and delete the environment a json file consisting my tags along with aws tags are getting created. I use that file to create the new environment using Cloud formation where lambda threw the error-
Error message/stack trace: "errorMessage": "Invalid tag key. Customers cannot set tag keys starting with aws: (case insensitive)"

Question -
How to create the environment that are created by Cloud Formation as it contains "aws:" prefix tags