Add github actions test workflow

Author: correl

.github/workflows/test.yml

@@ -0,0 +1,38 @@
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python:
+          - '3.9'
+          - '3.10'
+          - '3.11'
+          - '3.12'
+          - '3.13'
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
+      - name: Install tox
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install tox tox-gh
+      - name: Set up test suite
+        run: python -m tox run -vv --notest --skip-missing-interpreters false
+        env:
+          TOX_GH_MAJOR_MINOR: ${{ matrix.python }}
+      - name: Run test suite
+        run: python -m tox run --skip-pkg-install
+        env:
+          TOX_GH_MAJOR_MINOR: ${{ matrix.python }}