chore: auto update docker hub description (#9454)

.github/workflows/docker-release.yml

@@ -63,3 +63,16 @@ jobs:
           platforms: linux/amd64,linux/arm/v7,linux/arm64
           cache-from: type=gha,scope=docker-release
           cache-to: type=gha,mode=max,scope=docker-release
+  description:
+    runs-on: ubuntu-latest
+    needs: check-env
+    if: needs.check-env.outputs.check-docker == 'true'
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Docker Hub Description
+      uses: peter-evans/dockerhub-description@v3
+      with:
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+        repository: ${{ secrets.DOCKER_USERNAME }}/rsshub