bug: event source mapping updates are not respected for Kinesis and DynamoDB source types

[spwats]

Is there an existing issue for this?

• [X] I have searched the existing issues

Current Behavior

The event source mapping API accepts changes to existing event source mappings, but the updated configuration is not respected for Kinesis and DynamoDB stream source types.

Expected Behavior

The underlying event source mapping should be updated when the user requests a change (e.g. different Batch Size)

How are you starting LocalStack?

With the localstack script

Steps To Reproduce

• create kinesis stream, lambda function, and event source mapping
• update the event source mapping, e.g. point it at a different lambda function, observe that no change in behavior occurs

Environment

- OS: 
- LocalStack:

Anything else?

No response