ci: Bump poetry in /.github/workflows in the ci group

Bumps the ci group in /.github/workflows with 1 update: [poetry](https://github.com/python-poetry/poetry).


Updates `poetry` from 1.8.5 to 2.0.0
- [Release notes](https://github.com/python-poetry/poetry/releases)
- [Changelog](https://github.com/python-poetry/poetry/blob/main/CHANGELOG.md)
- [Commits](python-poetry/poetry@1.8.5...2.0.0)

---
updated-dependencies:
- dependency-name: poetry
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/constraints.txt

@@ -1,2 +1,2 @@
 pip==24.3.1
-poetry==1.8.5
+poetry==2.0.0