chore(deps): update docker/build-push-action action to v6

Author: renovate[bot]

.github/workflows/continuous-delivery.yml

@@ -24,7 +24,7 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Build and push Protofiles Docker image
-        uses: docker/build-push-action@v2.10.0
+        uses: docker/build-push-action@v6.5.0
         with:
           context: ./protos
           push: true