typings: make channelId non-nullable on MessageComponentInteraction (#6600)

src/structures/MessageComponentInteraction.js

@@ -14,6 +14,12 @@ class MessageComponentInteraction extends Interaction {
   constructor(client, data) {
     super(client, data);
 
+    /**
+     * The id of the channel this interaction was sent in
+     * @type {Snowflake}
+     * @name MessageComponentInteraction#channelId
+     */
+
     /**
      * The message to which the component was attached
      * @type {Message|APIMessage}