Add an output for the instance ids

[fszymanski-blvd]

Describe the Feature

With the recent change to add a random string to the database instance name, the database instance ids are no longer deterministic from outside the module. This prevents us from creating RDS endpoints for a subset of the instances since that requires the instance ids.

The request is to add the instance ids as an output.

Expected Behavior

Instance IDs should be output so they can be used to create RDS endpoints.

Use Case

Instance IDs should be output so they can be used to create RDS endpoints.

Describe Ideal Solution

Instance IDs should be output so they can be used to create RDS endpoints.

Alternatives Considered

Allow configuration that bypasses the new random_pet behavior

Additional Context

No response