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

Author: renovate[bot]

.github/workflows/build-docker.yml

@@ -27,7 +27,7 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           file: ./Dockerfile