/claim #3957

All Submissions:

• Contributions should target the dev branch. Did you create your branch from dev?
• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
  There's an open pr for this issue, but it seems like idle at this moment.

New Feature Submissions:

1. Does your submission pass tests?
2. Have you formatted your code locally using cargo +nightly fmt --all command prior to submission?
3. Have you checked your code using cargo clippy --all --all-features command?

Changes to Core Features:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your core changes, as applicable?
• Have you successfully ran tests with your changes locally?

Description

This PR adds an optional comment field to the config and enhances the collection create/update API to set this field.
I have tested both REST and gRPC APIs via the web UI and terminal, and added an integration test for the comment update in tests/openapi/openapi_integration/test_collection_update.py.