Create npm audit CI, using ybiquitous/npm-audit-fix-action

[henryclw]

This action will automatically do the npm audit, and create pull request accordingly.

You could look at https://github.com/henryclw/jsonhero-web/pull/10 as an example.

If you want to merge this commit and found out the CI job have failed, please update your repo setting as the following:

Feel free to contact me for more information