[skip ci] Mark frequently failing OCI test as XFAIL

Author: iluuu1994

ext/pdo_oci/tests/oci_success_with_info.phpt

@@ -3,6 +3,8 @@ Handling OCI_SUCCESS_WITH_INFO
 --EXTENSIONS--
 pdo
 pdo_oci
+--XFAIL--
+This test frequently fails in CI
 --SKIPIF--
 <?php
 if (getenv('SKIP_SLOW_TESTS')) die('skip slow tests excluded by request');