fix: Remove mpdf/mpdf dependency

Author: dogukanoksuz

composer.json

@@ -11,7 +11,6 @@
     "guzzlehttp/guzzle": "^7.5",
     "ext-json": "*",
     "ext-openssl": "*",
-    "mpdf/mpdf": "^8.1",
     "ext-ldap": "*",
     "mervick/aes-everywhere": "^1.1",
     "laravel/helpers": "^1.5",