Add RDS version statuses to HOODAW

[mikebell]

Background

We need a status page to show upcoming end of support RDS instances.

Data for Postgres https://docs.aws.amazon.com/AmazonRDS/latest/PostgreSQLReleaseNotes/postgresql-release-calendar.html

AWS command for listing instances on a specific postgres version - aws rds describe-db-instances --query "DBInstances[?Engine=='postgres' && starts_with(EngineVersion, '13')].[DBInstanceIdentifier]" --output table

[timckt]

This one has the dependency with #6728 .