Bump the workflows-dependencies group across 1 directory with 2 updates

Bumps the workflows-dependencies group with 2 updates in the /.github/workflows directory: [pip](https://github.com/pypa/pip) and [poetry](https://github.com/python-poetry/poetry).


Updates `pip` from 25.1.1 to 25.2
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@25.1.1...25.2)

Updates `poetry` from 2.1.3 to 2.1.4
- [Release notes](https://github.com/python-poetry/poetry/releases)
- [Changelog](https://github.com/python-poetry/poetry/blob/main/CHANGELOG.md)
- [Commits](python-poetry/poetry@2.1.3...2.1.4)

---
updated-dependencies:
- dependency-name: pip
  dependency-version: '25.2'
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: workflows-dependencies
- dependency-name: poetry
  dependency-version: 2.1.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: workflows-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/constraints.txt

@@ -1,4 +1,4 @@
 nox==2025.5.1
-pip==25.1.1
+pip==25.2
 nox-poetry==1.2.0
-poetry==2.1.3
+poetry==2.1.4