chore(release): 3.9.0 [skip ci]

# [3.9.0](https://gitlab.com/to-be-continuous/postman/compare/3.8.0...3.9.0) (2025-08-12)

### Features

* modular workflow rules ([e3b9694d](https://gitlab.com/to-be-continuous/postman/commit/e3b9694d1f3e81e396d6a8cdd46c9e9c49d97424))