Cleanup: use preprocessor version check for PyTypeObject declaration

While `tp_print` was deprecated, Python 3.8+ uses this for
'tp_vectorcall_offset' which wasn't stated in the comment from
efd71aad4f.

Instead of suppressing clang-tidy, use preprocessor a check since
this properly represents the difference between Python versions.

source/blender/python/bmesh/bmesh_py_ops.c

@@ -167,7 +167,11 @@ static PyTypeObject bmesh_op_Type = {
     0,                                            /* tp_itemsize */
     /* methods */
     NULL,            /* tp_dealloc */
-    (printfunc)NULL, /* printfunc tp_print; */
+#if PY_VERSION_HEX >= 0x03080000
+    0, /* tp_vectorcall_offset */
+#else
+    (printfunc)NULL, /* printfunc tp_print */
+#endif
     NULL,            /* getattrfunc tp_getattr; */
     NULL,            /* setattrfunc tp_setattr; */
     NULL,