Build and push js file to CloudFlare worker

[chendelin1982]

What type of your feature request?

Create Cloudflare worker to deploy for Dockerhub proxy

• [x] Create Cloudflare worker and test work.js

• [x] Binding domain for Cloudflare worker dockerhub.websoft9.com

• [ ] Complete work.js aotumaticlly build action

  • Update the proxy list at worker.js file from proxy list Markdown file
  • Deploy it to CloudFlare

• [ ] Optimize the load balancing for work.js

[zhaojing1987]

使用方法：https://github.com/cmliu/CF-Workers-docker.io action ：https://github.com/Websoft9/websoft9/actions/workflows/dockerhub_proxy.yml