[Wp/test] updates an oracle for -config qualif

src/plugins/wp/tests/wp_plugin/string_c.c.0.report.json

@@ -34,12 +34,12 @@
                                                                 "valid": 1 } },
                                 "memcpy_loop_assign": { "alt-ergo": { "total": 1,
                                                                     "valid": 1,
-                                                                    "rank": 43 },
+                                                                    "rank": 40 },
                                                         "qed": { "total": 2,
                                                                  "valid": 2 },
                                                         "wp:main": { "total": 3,
                                                                     "valid": 3,
-                                                                    "rank": 43 } },
+                                                                    "rank": 40 } },
                                 "memcpy_post_result_ptr": { "qed": { "total": 1,
                                                                     "valid": 1 },
                                                             "wp:main":