build(ci): add workflow for testing

.github/workflows/python.yml

@@ -0,0 +1,30 @@
+name: Python
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  test:
+    name: ${{ matrix.python-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10"]
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          pip install -U pip
+          pip install -r requirements.txt
+      - name: Lint with flake8
+        run: make lint
+      - name: Test with pytest
+        run: make test