fix(ClientRequest): add rawHeaders symbol to response listener instance

[mikicho]

@kettanaito I hope I didn't create an abomination 😅 let me know if this is the way and if there is a more elegant way to achieve this.
The problem is that FetchResponse did not use our Response proxy, resulting in no rawHeaders symbol being created in the instance. By utilizing Reflect.construct, I ensured it went through the proxy as intended.

TODO:

1. There is a type error in the test
2. should/can we export the kRawHeaders symbol for the test or use getOwnPropertySymbols?
3. Add proper comments on the extends & Reflect.construct trick if it's a valid option.