chore(deps): update peter-evans/dockerhub-description action to v4

Author: renovate[bot]

.github/workflows/readme-sync.yml

@@ -18,7 +18,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v4
     - name: Docker Hub Description
-      uses: peter-evans/dockerhub-description@v3
+      uses: peter-evans/dockerhub-description@v4
       with:
         username: ${{ secrets.DOCKERHUB_USERNAME }}
         password: ${{ secrets.DOCKERHUB_PASSWORD }}