Bump abatilo/actions-poetry from 3 to 4

Bumps [abatilo/actions-poetry](https://github.com/abatilo/actions-poetry) from 3 to 4.
- [Release notes](https://github.com/abatilo/actions-poetry/releases)
- [Changelog](https://github.com/abatilo/actions-poetry/blob/master/.releaserc)
- [Commits](abatilo/actions-poetry@v3...v4)

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

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

.github/workflows/ci.yml

@@ -35,7 +35,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Install poetry
-        uses: abatilo/actions-poetry@v3
+        uses: abatilo/actions-poetry@v4
         with:
           poetry-version: ${{ env.POETRY_VERSION }}
 
@@ -115,7 +115,7 @@ jobs:
           python-version: '3.10'
 
       - name: Install poetry
-        uses: abatilo/actions-poetry@v3
+        uses: abatilo/actions-poetry@v4
         with:
           poetry-version: ${{ env.POETRY_VERSION }}