ci: validate archutil on arm64

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

.github/workflows/validate.yml

@@ -60,3 +60,27 @@ jobs:
         uses: docker/bake-action@v4
         with:
           targets: ${{ matrix.target }}
+
+  archutil-arm64:
+    runs-on: ubuntu-22.04
+    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: Validate
+        uses: docker/bake-action@v4
+        with:
+          targets: validate-archutil
+          set: |
+            *.platform=linux/arm64