Using firebase seems to cause detox to hang

[artald]

When trying to test an app which uses firebase, detox tests could not complete and reached timeout.

After checking the logs it seems that something with how firebase works using websockets and firing many timers is causing detox to identify that it needs to wait, so the tests never actually get a chance to run and complete.

[talkol]

let's create a simple test app with firebase
npm install firebase and just open a websocket without doing anything else

[LeoNatan]

Test after #74 fix.