Implement outputs for MSK

### Name of the resource

Other

### Resource name

AWS::MSK::Cluster

### Description

Currently only supported outputs from msk cluster is the arn, which is very limitting if we want to make use of nested stacks.

For example let's say our application needs just the broker urls or zookeeper connection strings.

We may make a similar request through [commandrunner](https://github.com/aws-cloudformation/aws-cloudformation-resource-providers-awsutilities-commandrunner), or implement as seperate stack by passing it as parameter or make the api calls at the application level.

This adds additional complexity which when compared to that of [terraform](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/msk_cluster.html#attributes-reference) feels far too complex.

### Other Details

_No response_

Start by reviewing the AWS::MSK::Cluster resource and the requested broker URLs and Zookeeper connection strings. Compare the desired outputs with the attributes listed in the linked Terraform reference; done means the needed connection details are available as CloudFormation outputs for nested stacks.

Written by the indexing model from the issue text.