Add GitHub CI

.github/workflows/main.yml

@@ -0,0 +1,20 @@
+name: CI
+on: [push, pull_request, workflow_dispatch]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["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: Build project
+        run: make build
+      - name: Test project
+        run: make test
+      - name: Analyze project with mypy
+        run: make mypy