Update node-notifier (has mem leak fix)
Update node-notifier (has mem leak fix)

Summary:
Noticed that we're on a version of node-notifier that has a leak mentioned [here](https://github.com/mikaelbr/node-notifier/issues/183) and fixed in the newest version.

Automated tests

 [INTERNAL] [BUGFIX] [package.json] - Update node-notifier dependency
Closes https://github.com/facebook/react-native/pull/18033

Differential Revision: D7102637

Pulled By: hramos

fbshipit-source-id: 850f3d826c1d880a6281d95e4d5af68e9af89927

exponent/react-native,javache/react-native,facebook/react-native,hammerandchisel/react-native,pandiaraj44/react-native,janicduplessis/react-native,hoangpham95/react-native,hoastoolshop/react-native,exponentjs/react-native,janicduplessis/react-native,facebook/react-native,myntra/react-native,hoangpham95/react-native,javache/react-native,pandiaraj44/react-native,javache/react-native,janicduplessis/react-native,janicduplessis/react-native,exponent/react-native,javache/react-native,hammerandchisel/react-native,exponentjs/react-native,janicduplessis/react-native,javache/react-native,exponent/react-native,exponent/react-native,myntra/react-native,hammerandchisel/react-native,exponentjs/react-native,myntra/react-native,exponent/react-native,pandiaraj44/react-native,hoastoolshop/react-native,hoastoolshop/react-native,exponent/react-native,hammerandchisel/react-native,exponentjs/react-native,arthuralee/react-native,exponentjs/react-native,arthuralee/react-native,javache/react-native,javache/react-native,hoangpham95/react-native,hoangpham95/react-native,janicduplessis/react-native,facebook/react-native,pandiaraj44/react-native,facebook/react-native,facebook/react-native,hoangpham95/react-native,myntra/react-native,hoastoolshop/react-native,exponentjs/react-native,facebook/react-native,javache/react-native,exponent/react-native,myntra/react-native,janicduplessis/react-native,facebook/react-native,myntra/react-native,exponentjs/react-native,pandiaraj44/react-native,exponent/react-native,pandiaraj44/react-native,myntra/react-native,hammerandchisel/react-native,arthuralee/react-native,exponentjs/react-native,pandiaraj44/react-native,hoangpham95/react-native,hammerandchisel/react-native,hoastoolshop/react-native,hoangpham95/react-native,hoastoolshop/react-native,myntra/react-native,hammerandchisel/react-native,arthuralee/react-native,pandiaraj44/react-native,arthuralee/react-native,myntra/react-native,javache/react-native,janicduplessis/react-native,hammerandchisel/react-native,facebook/react-native,hoangpham95/react-native,facebook/react-native,hoastoolshop/react-native,hoastoolshop/react-native