Add GitHub Actions test

Author: mwcraig

.github/workflows/run_tests.yml

@@ -0,0 +1,28 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+  schedule:
+    # Weekly Friday 5AM build
+    # * is a special character in YAML so you have to quote this string
+    - cron: '0 5 * * 5'
+
+jobs:
+    tests:
+        runs-on: ${{ matrix.os }}
+        strategy:
+          fail-fast: true
+          matrix:
+            os: [ubuntu-latest]
+        steps:
+        - name: Checkout code
+          uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        - name: Set up Python
+          uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55  # v5.5.0
+          with:
+            python-version: '3.13'
+        - name: Install and build
+          run: python -m pip install .[test]
+        - name: Run tests
+          run: pytest tests