[TASK] Add upload date to response

Classes/Service/YoutubeService.php

@@ -133,7 +133,8 @@ class YoutubeService {
 				'title' => $field['snippet']['title'],
 				'description' => strip_tags($field['snippet']['description']),
 				'thumbnail' => $previewImage['url'],
-				'url' => 'https://www.youtube.com/watch?v=' . $field['id']
+				'url' => 'https://www.youtube.com/watch?v=' . $field['id'],
+				'publishedAt' => $field['snippet']['publishedAt'],
 			];
 		}