fix: Update link-preview

Signed-off-by: Marcel Klehr <mklehr@gmx.net>

Author: marcelklehr

composer.json

@@ -5,7 +5,7 @@
 		"ext-json": "*",
 		"ext-libxml": "*",
 		"ext-pdo": "*",
-		"marcelklehr/link-preview": "3.x",
+		"marcelklehr/link-preview": "4.x",
 		"rowbot/url": "^4.0",
 		"xantios/mimey": "^2.1",
 		"fivefilters/readability.php": "^3.1"