Bump nox-poetry from 0.8.5 to 0.8.6 in /.github/workflows

Bumps [nox-poetry](https://github.com/cjolowicz/nox-poetry) from 0.8.5 to 0.8.6.
- [Release notes](https://github.com/cjolowicz/nox-poetry/releases)
- [Commits](cjolowicz/nox-poetry@v0.8.5...v0.8.6)

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

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

Author: dependabot[bot]

.github/workflows/constraints.txt

@@ -1,7 +1,7 @@
 pip==21.1.2
 cookiecutter==1.7.3
 nox==2021.6.12
-nox-poetry==0.8.5
+nox-poetry==0.8.6
 poetry==1.1.6
 pre-commit==2.13.0
 virtualenv==20.4.7