Fix call to dc[n]gettext in tests with 0 $category

This causes a segfault on PHP-8.1

Author: iluuu1994

Zend/tests/arginfo_zpp_mismatch.inc

@@ -29,6 +29,9 @@ function skipFunction($function): bool {
      || $function === 'posix_setrlimit'
      || $function === 'sapi_windows_generate_ctrl_event'
      || $function === 'imagegrabscreen'
+     // PHP-8.1 only
+     || $function === 'dcgettext'
+     || $function === 'dcngettext'
     ) {
         return true;
     }