Update dompdf for security #3310311

composer.json

@@ -6,7 +6,7 @@
   "license": "GPL-2.0+",
   "require": {
     "phpoffice/phpword": "^0.18.2",
-    "dompdf/dompdf": "^1.1.1"
+    "dompdf/dompdf": "^2.0.0"
   },
   "minimum-stability": "stable"
 }