Bump tsconfig target to es2017 #7
Description
NestJS 8.0 required min node version of 10.13.0, which basically has full ES2017 support as per node.green/#ES2017.
Per the graph Array.prototype.values() was not available in 10.8.0, per MDN it was added back in 10.9.0.
We can safely bump tsconfig target to es2017 without any compatibility concerns, and it stops TypeScript from generating shim for async/await.