Summary: ReactNativeFlipperExample crashed as soon as a running app tried to connect to the Metro instance, which turns out to be caused by a pinned `ws`. Luckily someone else experienced this before, would have taken a while otherwise :-P, as the error is not logged in Metro, and on Flipper side we just receive a super generic error message https://github.com/facebook/metro/issues/678#issuecomment-865835602
Reviewed By: nikoant
Differential Revision: D29515730
fbshipit-source-id: 2524f85338c9b93d8bcf31b1db150c3c8e664500