test image build caching

.gitea/workflows/build.yaml

@@ -7,6 +7,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: docker/setup-buildx-action@v3
+      - uses: actions/cache@v4
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ gitea.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
       - uses: docker/login-action@v3
         with:
           username: ${{ vars.DOCKERHUB_USERNAME }}
@@ -14,8 +20,10 @@ jobs:
       - uses: docker/build-push-action@v6
         with:
           context: .
-          push: true
+          push: false
           tags: phanipavank/autoltx:latest
           platforms: linux/arm64, linux/amd64
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
           build-args: |
             TARGETARCH=${{matrix.arch}}