test poetry downgrade

.github/workflows/lint.yml

@@ -42,13 +42,14 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-
+      
       - name: Install Poetry
         uses: snok/install-poetry@v1
         with:
           virtualenvs-create: true
           virtualenvs-in-project: true
           installer-parallel: true
+          version: 1.8.5
 
       - name: Load cached venv
         id: cached-poetry-dependencies