Switch back to separate tox install

Author: thibaudcolas

.github/workflows/ci.yml

@@ -9,11 +9,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - run: pipx install tox "poetry>=1.1.12,<2"
+      - run: pipx install "poetry>=1.1.12,<2"
       - uses: actions/setup-python@v4
         with:
           python-version-file: pyproject.toml
           cache: 'poetry'
+      - run: pip install tox
       - run: tox -e lint,py311-dj42
   test_compatibility:
     needs: test
@@ -41,11 +42,12 @@ jobs:
             #   toxenv: py312-dj41
     steps:
       - uses: actions/checkout@v3
-      - run: pipx install tox "poetry>=1.1.12,<2"
+      - run: pipx install "poetry>=1.1.12,<2"
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
           allow-prereleases: true
+      - run: pip install tox
       - run: tox -q
         env:
           TOXENV: ${{ matrix.toxenv }}