Automate the process further with Github Action

[ThangLeQuoc]

This is a brief idea to further automate the process with Github action:

High level detail:

• A github action cronjob will be executed by a pre-defined schedule (daily-weekly).
• This cronjob will download the Vietnamese provinces xls sheet from the government general statistic website.
• Then further action is trigger: convert xls to csv -> invoke the existing golang script, if there's a changes, create a github issue and if possible, produce a Pull request with the updated patch files