add simple ci

.github/workflows/build_docker.yaml

@@ -0,0 +1,17 @@
+name: Build
+run-name: ${{ gitea.actor }} is runs ci pipeline
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Build Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: false