Replace CircleCI with Github Action

> related https://github.com/DrSensor/webassembly-loader/pull/11#issuecomment-539257858

#### Rules & TODO
- 3rd party actions are **not** allowed except the [official one](https://github.com/actions/)
- remove `npm audit` steps (security check will be performed by github & dependabot)
- replace/add publish step into `npm.pkg.github.com` are **allowed** :wink: ([for more info](https://help.github.com/en/articles/configuring-npm-for-use-with-github-package-registry))