Support ECS Service connect

Updating the task definition to use Service Connect, I get an error during the deploy process.

* UnexpectedParameter: Unexpected key 'name' found in params.containerDefinitions[0].portMappings[0]
* UnexpectedParameter: Unexpected key 'appProtocol' found in params.containerDefinitions[0].portMappings[0]

With ECS supporting Service connect, name and appProtocol has to be supported in portMappings

https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/ECS.html#registerTaskDefinition-property

[frannpr]

thank you both @shinenelson @javalon very much! It has helped me to understand and solve the problem 💯

[shinenelson]

This is a problem only if one uses the AWS Management Console to create new task definition revision. To get around this, one could use the Create new version with JSON option while creating the new revision and edit the task definition JSON by hand. I recognize that this is not as intuitive as filling up a form, but that comes at the cost of all of the GitHub Action workflows depending on the same task definitions failing.