Add `update` method on Client for Resources
A Resource can be updated by passing it in to the client's update
method:
$notification->update([
'dismissed-at' => '2018-01-01 00:00:00',
]);
$notification = $client->update($notification);
The service currently doesn't support notification updates so this merge request is dependent upon confirming behaviour first -- although the current code is spec compliant so should be mergeable without changes.
Edited by Samuel Ryan