Need to connect new Firehose to our authentication system so we can make sure only authenticated users have access to the API.

Notes:

1. Update IaC to pass new env variables: AWS_ID (dummy value), AWS_KEY (dummy value), COGNITO_CLIENT_ID, AWS_REGION, COGNITO_CACHE_EXPIRATION (300sec)
2. Add cognito to firehose libraries
3. Apply middleware to the main function
4. Update documentation in firehose swagger file