ci(github): add prover_stats_api docker build action (#768)

Co-authored-by: HAOYUatHZ <37070449+HAOYUatHZ@users.noreply.github.com>

.github/workflows/docker.yaml

@@ -153,3 +153,24 @@ jobs:
         tags: scrolltech/coordinator:${{github.ref_name}}
         # cache-from: type=gha,scope=${{ github.workflow }}
         # cache-to: type=gha,scope=${{ github.workflow }}
+  prover-stats-api:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+    - name: Login to Docker Hub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    - name: Build and push prover-stats-api docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/prover-stats-api.Dockerfile
+        push: true
+        tags: scrolltech/prover-stats-api:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}