Add include for jit stencils

Author: DinoV

Python/jit.c

@@ -11,6 +11,7 @@
 #include "pycore_floatobject.h"
 #include "pycore_frame.h"
 #include "pycore_function.h"
+#include "pycore_import.h"
 #include "pycore_interpframe.h"
 #include "pycore_interpolation.h"
 #include "pycore_intrinsics.h"