Fix gc.c

Author: vstinner

Python/gc.c

@@ -12,7 +12,9 @@
 #include "pycore_object_alloc.h"  // _PyObject_MallocWithType()
 #include "pycore_pyerrors.h"
 #include "pycore_pystate.h"       // _PyThreadState_GET()
+#include "pycore_tuple.h"         // _PyTuple_MaybeUntrack()
 #include "pycore_weakref.h"       // _PyWeakref_ClearRef()
+
 #include "pydtrace.h"
 
 #ifndef Py_GIL_DISABLED