graphics/opensubdiv: update to 3.6.0
Changelogs:
https://graphics.pixar.com/opensubdiv/docs/release_notes.html#release-3-5-1-july-2023
https://graphics.pixar.com/opensubdiv/docs/release_notes.html#release-3-6-0-sep-2023
PR: 275821
Tested by: fluffy, vvd