docs(PermissionOverwriteManager): Correct @returns of delete (#6632)

src/managers/PermissionOverwriteManager.js

@@ -150,7 +150,7 @@ class PermissionOverwriteManager extends CachedManager {
    * Deletes permission overwrites for a user or role in this channel.
    * @param {UserResolvable|RoleResolvable} userOrRole The user or role to delete
    * @param {string} [reason] The reason for deleting the overwrite
-   * @returns {GuildChannel}
+   * @returns {Promise<GuildChannel>}
    */
   async delete(userOrRole, reason) {
     const userOrRoleId = this.channel.guild.roles.resolveId(userOrRole) ?? this.client.users.resolveId(userOrRole);