Goal: Type the function `PromiseAll` that accepts an array of `PromiseLike` objects. The returning value should be `Promise<T>` where `T` is the resolved result array. Source challenge: https://github.com/type-challenges/type-challenges/tree/main/questions/00020-medium-promise-all Reference explanation: https://github.com/ghaiklor/type-challenges-solutions/blob/main/en/medium-promise-all.md