Travis Rutledge

resource/aws_lambda_event_source_mapping: add kms_key_arn support

1

### Description This adds the capability to set the [KMSKeyArn](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-KMSKeyArn) for the CreateEventSourceMapping API for AWS Lambda. ### Relations Closes #38988 ### References - [CreateEventSourceMapping API Documentation](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-KMSKeyArn) - [CreateEventSourceMapping AWS...