It should be available if there is an official release. Those are listed on https://gfe.nvidia.com/mac-updateBelieve 17G10021 is the latest available, or install the .108 driver in the first post.
Are you sure we are not talking about 17G10021 which should be 2019-007? I am still on 17G9016 which I think is 2019-006 and I have 3220.127.116.11.40.132 installed. As of now, I do not have any info about an 2019-008 update.
From https://support.apple.com/en-us/HT201222, I do not see a 2019-008 update, 007 is the latest official.