In #462 the Numba dependency was adjusted for `numba-cuda>=0.16`, but the `numba-cuda` package in PyPI is a metapackage while the required one is `numba-cuda[cu12]`. This change fixes the dependency for wheels installs.

Authors:
  - Peter Andreas Entschev (https://github.com/pentschev)

Approvers:
  - Bradley Dice (https://github.com/bdice)

URL: #463

This change applies rapidsai/ucxx#462 to the `protocol="ucx-old"` patch, without which Dask+UCX-Py tests currently fail.

Authors:
  - Peter Andreas Entschev (https://github.com/pentschev)

Approvers:
  - Tom Augspurger (https://github.com/TomAugspurger)

URL: #118

- Partially reverts #462.
- Use numba-cuda>=0.15.2,<0.16

We are investigating an issue where the new CUDA bindings in numba-cuda 0.16 cause segfaults, blocking our CI. This temporarily downgrades to numba-cuda >=0.15.2,<0.16 until a fix can be made.

Authors:
  - Bradley Dice (https://github.com/bdice)

Approvers:
  - Gil Forsyth (https://github.com/gforsyth)

URL: #466

The `numba-cuda` package was made a dependency in #462, but the conda recipe was missed.

Authors:
  - Peter Andreas Entschev (https://github.com/pentschev)
  - Bradley Dice (https://github.com/bdice)

Approvers:
  - Kyle Edwards (https://github.com/KyleFromNVIDIA)
  - James Lamb (https://github.com/jameslamb)
  - Bradley Dice (https://github.com/bdice)

URL: #481