Enable test for indexing with u8 indices.
https://github.com/openxla/xla/commit/4e4eff35bf9a5f8ed54fd290391bd0612f49533e fixed the underlying XLA problem.
Fixes https://github.com/google/jax/issues/6122 https://github.com/google/jax/issues/16836
PiperOrigin-RevId: 552880163
