ci(actions): add github actions

.github/workflows/tox.yaml

@@ -0,0 +1,26 @@
+name: Run Tox
+on:
+  pull_request:
+    branches: [main]
+jobs:
+  test:
+    name: Test with ${{ matrix.python-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 4
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install tox tox-gh-actions
+      - name: Run Tox
+        env:
+          TOXENV: py${{ matrix.python-version }}
+        run: tox