CI: Just run tox directly for miscellaneous checks

Author: effigies

.github/workflows/misc.yml

@@ -26,20 +26,11 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-        with:
-          submodules: recursive
-          fetch-depth: 0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:
           python-version: 3
       - name: Display Python version
         run: python -c "import sys; print(sys.version)"
-      - name: Install tox
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install tox tox-gh-actions
-      - name: Run tox
-        run: tox
-        env:
-          CHECK: ${{ matrix.check }}
+      - name: Run check
+        run: pipx run tox -e ${{ matrix.check }}