npm registry should not add install scripts into package.json

[chyzwar]

fsevents ship with pre-compiled binary for MacOS. npm Registry is changing package.json by including install steps with node-gyp.

Compare
https://registry.npmjs.com/fsevents/2.3.2
to
https://github.com/fsevents/fsevents/blob/v2.3.2/package.json

This is leading to yarn installing node-gyp and its large dependency tree.

yarnpkg/berry#5035
yarnpkg/yarn#8052