add ci workflow

.github/workflows/ci.yml

@@ -0,0 +1,32 @@
+name: ci
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-buildx-action@v3
+      - name: build ci image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          tags: teufa:ci
+          target: ci
+          load: true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          push: false
+      - name: run pytest
+        uses: addnab/docker-run-action@v3
+        with:
+          image: teufa:ci
+          run: pytest