[BUG] Several newer index wrappers have not been added to the cuVS-bench pytests

We should always test what we expect to work, and not expect things to work without tests. It looks like we have been adding new index wrappers to cuVS bench without adding the pytests.

Because they haven't been running through our smoke tests in CI, they have had major bugs for several releases that have gone unnoticed. These should be fixed asap.