feat(rest): use undici (#7747)

Co-authored-by: Vlad Frangu <kingdgrizzle@gmail.com>
Co-authored-by: ckohen <chaikohen@gmail.com>

packages/rest/src/lib/handlers/IHandler.ts

@@ -1,11 +1,11 @@
-import type { RequestInit } from 'node-fetch';
+import type { RequestOptions } from '../REST';
 import type { HandlerRequestData, RouteData } from '../RequestManager';
 
 export interface IHandler {
 	queueRequest: (
 		routeId: RouteData,
 		url: string,
-		options: RequestInit,
+		options: RequestOptions,
 		requestData: HandlerRequestData,
 	) => Promise<unknown>;
 	// eslint-disable-next-line @typescript-eslint/method-signature-style -- This is meant to be a getter returning a bool