Update docker-image.yml

Author: C0rWin

.github/workflows/docker-image.yml

@@ -21,8 +21,11 @@ jobs:
       uses: actions/checkout@v4      
 
     - name: Install Cosign
-      uses: docker/setup-buildx-action@v2
+      uses: sigstore/cosign-installer@v3.6.0
 
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+      
     - name: Log in to Docker Hub
       uses: docker/login-action@v2
       with: