Expose deployment_ids in Environments endpoint

Problem to solve

In order to script actions against the Environments and Deployments APIs, additional endpoint features are needed. Using the API it should be possible to review details for all Deployment objects for a given Environment.

Intended users

• Developers
• API users

Further details

This is a extension of issue #5582 (closed).

Proposal

• expose a list of deployment IDs in Environment object

Links / references

#5582 (closed)