[skip ci] Disable opcache.file_cache_only for gh22782.phpt

Preloading is not compatible opcache.file_cache_only=0.

Author: iluuu1994

Zend/tests/first_class_callable/constexpr/gh22782.phpt

@@ -7,6 +7,7 @@ opcache.enable=1
 opcache.enable_cli=1
 opcache.optimization_level=-1
 opcache.preload={PWD}/gh22782.inc
+opcache.file_cache_only=0
 --SKIPIF--
 <?php
 if (PHP_OS_FAMILY == 'Windows') die('skip Preloading is not supported on Windows');