tentative fixup (tox-gh): use native example setup

.github/workflows/ci.yml

@@ -37,15 +37,18 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - name: Setup Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python-version }}
-      - name: Install Tox and any other packages
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install tox tox-gh
-      - name: Test
-        run: tox run -vvv
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@v3
+      - name: Install tox
+        run: uv tool install --python-preference only-managed --python 3.13 tox --with tox-uv --with tox-gh
+      - name: Install Python
+        if: matrix.python-version != '3.13'
+        run: uv python install --python-preference only-managed ${{ matrix.python-version }}
+      - name: Setup test suite
+        run: tox run -vv --notest --skip-missing-interpreters false
+        env:
+          TOX_GH_MAJOR_MINOR: ${{ matrix.python-version }}
+      - name: Run test suite
+        run: tox run --skip-pkg-install
         env:
           TOX_GH_MAJOR_MINOR: ${{ matrix.python-version }}