WIP: install watchman in e2e tests (#25257)
WIP: install watchman in e2e tests (#25257)

Summary:
An attempt to fix CI.
This PR includes changes from https://github.com/facebook/react-native/pull/25241, to be removed once synced to master

## Changelog

[General] [Fix] - install watchman in e2e tests to fix CI
Pull Request resolved: https://github.com/facebook/react-native/pull/25257

Differential Revision: D15804513

Pulled By: cpojer

fbshipit-source-id: 33d4494ffaa340f99f1dae8764449e81e552c943

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