Update docker/build-push-action action to v7

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -41,7 +41,7 @@ jobs:
 
     - name: Build and push
       id: push
-      uses: docker/build-push-action@v6
+      uses: docker/build-push-action@v7
       with:
         context: .
         push: true