Bump nox-poetry from 1.0.2 to 1.0.3 in /.github/workflows

Bumps [nox-poetry](https://github.com/cjolowicz/nox-poetry) from 1.0.2 to 1.0.3.
- [Release notes](https://github.com/cjolowicz/nox-poetry/releases)
- [Commits](cjolowicz/nox-poetry@v1.0.2...v1.0.3)

---
updated-dependencies:
- dependency-name: nox-poetry
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/constraints.txt

@@ -1,5 +1,5 @@
 pip==23.2
 nox==2023.4.22
-nox-poetry==1.0.2
+nox-poetry==1.0.3
 poetry==1.4.0
 virtualenv==20.20.0