AUT-5124: document delivery receipts api testing using curl in strategic environments

[dbes-gds]

What

Document delivery receipts api testing using curl in strategic environments

• Changes for post delivery receipts api secure pipeline migration
• Guidance on how to test the api using curl

How to review

1. Code Review
2. Test in a dev environment

Checklist

• Deployment of this PR will not break active user journeys
• Impact on orch and auth mutual dependencies has been checked.
• No changes required or changes have been made to stub-orchestration.

[github-actions]

Java Tests Skipped

No Java files were changed in this pull request. Java tests will be skipped¹.

Any Java files that are changed in a subsequent commit will trigger the Java tests.

Footnotes

1. These tests will still show as passing in the PR status check, but will not actually have run. ↩