CI: Add workflow

.github/workflows/test.yml

@@ -0,0 +1,31 @@
+name: Test
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.8', '3.10']
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install build
+        
+    - name: Run tests
+      run: |
+        python run_tests.py
+        
+    - name: Build package
+      run: |
+        python -m build