fixup leak:^_PyMem_RawRealloc$

Author: jiridanek

tests/lsan.supp

@@ -54,6 +54,7 @@ leak:^PyThread_allocate_lock$
 leak:^PyMem_Malloc$
 leak:^PyMem_Calloc$
 leak:^PyMem_Realloc$
+leak:^_PyMem_RawRealloc$
 leak:^_PyObject_GC_Resize$
 # Python uses these alloc functions if you define PYTHONDEVMODE=1
 leak:^_PyMem_DebugRawAlloc$