Bump abatilo/actions-poetry from 2.1.5 to 2.1.6 (#19)

Bumps [abatilo/actions-poetry](https://github.com/abatilo/actions-poetry) from 2.1.5 to 2.1.6.
- [Release notes](https://github.com/abatilo/actions-poetry/releases)
- [Changelog](https://github.com/abatilo/actions-poetry/blob/master/.releaserc)
- [Commits](abatilo/actions-poetry@v2.1.5...v2.1.6)

---
updated-dependencies:
- dependency-name: abatilo/actions-poetry
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
           key: ${{ matrix.python_ver }}-pip-${{ hashFiles('pyproject.toml') }}
           restore-keys: |
             ${{ matrix.python_ver }}-pip-
-      - uses: abatilo/[email protected].5
+      - uses: abatilo/[email protected].6
       - name: Install dependencies
         run: |
           poetry lock