tmp - try pipx

Signed-off-by: Caroline Russell <[email protected]>

.github/workflows/pytests.yml

@@ -19,10 +19,11 @@ jobs:
       run: python -c "import sys; print(sys.version)"
     - name: Install poetry
       run: |
-        python3 -m pip install poetry
-        poetry install
+        pipx ensurepath
+        pipx install poetry
     - name: Test with pytest
       run: |
+        poetry install
         poetry run pytest --cov=blint tests
     - name: Lint with flake8
       run: |