chore(deps): update docker/build-push-action action to v7 (#13)

Author: tmeckel

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

@@ -52,7 +52,7 @@ jobs:
             org.opencontainers.image.maintainer=Ophios GmbH
       - name: Build and push Docker image
         id: build_and_push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: true