Replace unmaintained azure/docker-login with docker/login-action

Author: bart-vmware

.github/workflows/build-and-stage.yml

@@ -25,9 +25,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Git checkout
-      uses: actions/checkout@v6
-      with:
-        persist-credentials: false
+      uses: actions/checkout@v6
+      with:
+        persist-credentials: false
 
     - name: Detect template source from PR body
       env:
@@ -46,9 +46,9 @@ jobs:
         fi
 
     - name: Login to container registry
-      uses: azure/docker-login@v2
+      uses: docker/login-action@v4
       with:
-        login-server: "${{ vars.DOCKER_REGISTRY }}"
+        registry: "${{ vars.DOCKER_REGISTRY }}"
         username: "${{ secrets.DOCKER_USERNAME }}"
         password: "${{ secrets.DOCKER_PASSWORD }}"