[DBCluster] Support add support for StorageThroughput

[dbbh]

This code change introduces support for GP3 storage type for Aurora engines. With the the storage types supported on Aurora engines, the database will now return a new StorageThroughput as a read-only parameter which will be set automatically by the backend. For more information, check the public documentation related to this feature:

https://aws.amazon.com/about-aws/whats-new/2022/11/amazon-rds-general-purpose-gp3-storage-volumes/

Issue #, if available:

Description of changes:

• Adds StorageThroughput as a read-only parameter.
• Adds and refactors unit tests for DBCluster related to StorageThroughput and Iops
• Includes missing stabilization on StorageThroughput for DBInstance resource which is already rolled-out.
• Bumps RDS SDK version to 2.24.13

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[moataz-mhmd]

In the translateDbClusterFromSdk method, I would expect to see this StorageThroughput parameter being set. This method is responsible for returning the details of a DB Cluster to CFN, including read-only parameters like DBClusterArn. It's important to set these parameters in the method because if they are not set, the customer may encounter a null exception when trying to reference them for any reason, such build condition to create another resource or configuring dependent resource.

If you want to take a look at the code implementation, you can find it here: https://github.com/aws-cloudformation/aws-cloudformation-resource-providers-rds/blob/master/aws-rds-dbcluster/src/main/java/software/amazon/rds/dbcluster/Translator.java#L498-L580

documentation: https://docs.aws.amazon.com/cli/latest/reference/rds/describe-db-clusters.html