add github action

.github/workflows/runci.yml

@@ -0,0 +1,27 @@
+---
+name: runci
+"on":
+  - pull_request
+  - push
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        python-version: [3.9, 3.x]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }} ${{ matrix.os }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+
+          pip install black ruff
+      - name: Run tests
+        shell: bash
+        run: |
+          ./runci.sh