ci: test sandbox build with multiple platforms

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

Author: crazy-max

.github/workflows/test-os.yml

@@ -230,3 +230,33 @@ jobs:
         if: always()
         run: |
           vagrant ssh -- "sudo cat /vagrant/.tmp/logs/containerd"
+
+  sandbox-build:
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/arm64
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          version: ${{ env.SETUP_BUILDX_VERSION }}
+          driver-opts: image=${{ env.SETUP_BUILDKIT_IMAGE }}
+          buildkitd-flags: --debug
+      -
+        name: Build
+        uses: docker/bake-action@v5
+        with:
+          targets: integration-tests-base
+          set: |
+            *.platform=${{ matrix.platform }}