missing Promise return type on shutdown

[Viper-Bit]

shutdown return type in ts must be Promise<boolean> instead of boolean

hyper-express/types/components/Server.d.ts

Lines 56 to 62 in 1f36125

	/**
	* Performs a graceful shutdown of the server and closes the listen socket once all pending requests have been completed.
	*
	* @param {uWebSockets.us_listen_socket=} [listen_socket] Optional
	* @returns {Promise<Boolean>}
	*/
	shutdown(listen_socket?: uWebsockets.us_listen_socket): boolean;

typescript complain about using await on it:
Unexpected `await` of a non-Promise (non-"Thenable") value.

[kartikk221]

Hey, this has been merged and pushed in the recent v6.15.2 version.