fix: adding blurhash to definitions

Signed-off-by: skalidindi53 <s.teja2004@gmail.com>
Signed-off-by: Joas Schilling <coding@schilljs.com>

lib/public/RichObjectStrings/Definitions.php

@@ -368,6 +368,12 @@ class Definitions {
 					'description' => 'The height in pixels if the file is an image',
 					'example' => '1080',
 				],
+				'blurhash' => [
+					'since' => '30.0.0',
+					'required' => false,
+					'description' => 'The blurhash of the image',
+					'example' => 'LEHV9uae2yk8pyo0adR*.7kCMdnj',
+				],
 			],
 		],
 		'forms-form' => [