Fixes LP bug https://bugs.launchpad.net/snapcraft/+bug/2083964 Instead of parsing the project again itself, expand-extensions now uses the project provided by the application. The output is changed slightly, but I believe it reflects a more accurate expansion. - [ ] Have you followed the [guidelines for contributing](https://github.com/canonical/snapcraft/blob/main/CONTRIBUTING.md)? - [ ] Have you signed the [CLA](http://www.ubuntu.com/legal/contributors/)? - [ ] Have you successfully run `tox run -m lint`? - [ ] Have you successfully run `tox run -e test-py310`? (supported versions: `py39`, `py310`, `py311`, `py312`) -----