Use return type deduction for timers

Fix updates to Node.js timers types breaking the TypeScript build by
deducing the correct type from the return type of the
setTimeout/setInterval functions.

packages/controller/src/routes.ts

@@ -255,7 +255,7 @@ interface ProxyStream {
 	mime: string | null;
 	filename: string | null;
 	events: events.EventEmitter;
-	timeout: NodeJS.Timeout;
+	timeout: ReturnType<typeof setTimeout>;
 }
 
 export async function createProxyStream(app: Application): Promise<ProxyStream> {