Hide the already safe pack() function

Author: cedric-anne

generated/8.1/functionsList.php

@@ -10,4 +10,5 @@
     'array_all', // false is not an error
     'sodium_crypto_auth_verify', // boolean return value is expected from verify
     'sodium_crypto_sign_verify_detached', // boolean return value is expected from verify
+    'pack', // this function no longer returns false since PHP 8.0, but the doc has only been updated since PHP 8.4
 ];