Fix Timeouts and Speed Up Jest on CI
If you have a large or complex test suite, running Jest on CI can make your build especially slow or cause timeouts. Luckily, Jest has an option cut out for this.
runInBand runs all tests serially inside the current process instead of creating a bunch workers.
Using this option, we were able to trim suite time above 20mins down to less than 4 mins. 🏎️😎