[FEAT] add workflow to auto update

[lizheming]

• Use GitHub Action to automatically update data to ensure the stability of data updates, and do not need to write your own Access Token to the file. Note that you need to enable the write repo permission to allow workflow.
  
• Removed the operation of the Git repository in the update.sh script, only retaining the ability to automatically pull and update the website on the server.

close #9 when pr merged