Bump nox in /.github/workflows in the workflows-dependencies group

Bumps the workflows-dependencies group in /.github/workflows with 1 update: [nox](https://github.com/wntrblm/nox).


Updates `nox` from 2025.10.16 to 2025.11.12
- [Release notes](https://github.com/wntrblm/nox/releases)
- [Changelog](https://github.com/wntrblm/nox/blob/main/CHANGELOG.md)
- [Commits](wntrblm/nox@2025.10.16...2025.11.12)

---
updated-dependencies:
- dependency-name: nox
  dependency-version: 2025.11.12
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: workflows-dependencies
...

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

Author: dependabot[bot]

.github/workflows/constraints.txt

@@ -1,5 +1,5 @@
 pip==25.3
-nox==2025.10.16
+nox==2025.11.12
 nox-poetry==1.2.0
 poetry==2.2.1
 virtualenv==20.35.4