Automatically update Docker Hub description

Author: aaronshaf

.github/workflows/publish.yaml

@@ -27,3 +27,9 @@ jobs:
           push: true
           platforms: linux/amd64,linux/arm64
           tags: aaronshaf/dynamodb-admin:latest,aaronshaf/dynamodb-admin:${{ env.VERSION }}
+      - name: Docker Hub Description
+        uses: peter-evans/dockerhub-description@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+          repository: aaronshaf/dynamodb-admin