pin poetry version

.github/workflows/ci.yml

@@ -26,6 +26,8 @@ jobs:
         uses: "actions/checkout@v4"
       - name: "Setup environment"
         uses: "networktocode/gh-action-setup-poetry-environment@v6"
+        with:
+            poetry-version: "1.8.5"
       - name: "Linting: ruff format"
         run: "poetry run invoke ruff --action format"
   ruff-lint: