Update docker-image.yml

.github/workflows/docker-image.yml

@@ -22,13 +22,16 @@ jobs:
       contents: read
       packages: write
       id-token: write
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      -
-        name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+      - name: Install cosign
+        if: github.event_name != 'pull_request'
+        uses: sigstore/cosign-installer@v3.8.1
+        with:
+          cosign-release: "v2.4.3"
 
       - name: Setup Docker buildx
         uses: docker/setup-buildx-action@v3