gh-150546: Fix cleanup for replacement_locations in _PyCode_New() (#150549)

Author: lpyu001

Objects/codeobject.c

@@ -748,6 +748,7 @@ _PyCode_New(struct _PyCodeConstructor *con)
 #endif
 
     if (init_code(co, con) < 0) {
+        Py_XDECREF(replacement_locations);
         Py_DECREF(co);
         return NULL;
     }