poetry don't use virtualenvs

Author: mahenzon

.github/workflows/testing.yml

@@ -22,6 +22,7 @@ jobs:
       - name: Install poetry
         run: |
           python -m pip install --upgrade pip poetry pre-commit
+          poetry config virtualenvs.create false --local
       - name: Install dependencies
         run: poetry install
       - name: Lint code