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/freestyle/intern/python/BPy_Interface1D.cpp

@@ -341,9 +341,11 @@ PyTypeObject Interface1D_Type = {
     sizeof(BPy_Interface1D),                         /* tp_basicsize */
     0,                                               /* tp_itemsize */
     (destructor)Interface1D_dealloc,                 /* tp_dealloc */
-    /* Incompatible with Python3.8+ (deprecated function).
-     * NOLINTNEXTLINE: modernize-use-nullptr. */
-    0,                                        /* tp_print */
+#if PY_VERSION_HEX >= 0x03080000
+    0, /* tp_vectorcall_offset */
+#else
+    nullptr, /* tp_print */
+#endif
     nullptr,                                  /* tp_getattr */
     nullptr,                                  /* tp_setattr */
     nullptr,                                  /* tp_reserved */