Use async/await in npm distribution to improve stack traces

[Yogu]

Currently, the files in the distributed npm package use tslib_1.__awaiter and generator functions instead of async / await. Since node version 7.6.0, native async/await is supported. Besides readability, native async/await has the advantage that stack traces contain the asynchronous context. This is very useful when debugging request errors.

The oldest supported version of node is v12, so I'd suggest to use a tsconfig.json that makes use of all the node-v12 features:

{
  "compilerOptions": {
    "lib": ["es2019", "es2020.bigint", "es2020.string", "es2020.symbol.wellknown"],
    "module": "commonjs",
    "target": "es2019"
  }
}

Otherwise, targeting ES2017 would be enough to emit native async/await.

(Sorry for removing the issue template; since I'm not reporting a bug and it has nothing to do with kubernetes itself, it didn't seem to fit.)

[brendandburns]

#667 updates our typescript settings for a different reason (BigInt support)

Can you check and see if that update will fix this for you too?

Thanks!

[brendandburns]

#667 has merged, I believe that this fixes the issue. Please use /reopen if you need further assistance.

[Yogu]

Didn't see the reply, thanks! 0.15.0 uses native async/await so that's great.