[Azure] Update default image to support newer cuda versions

[romilbhardwaj]

The current image used for Azure has an old version of nvidia drivers:

(base) azureuser@ray-dbg-2ea4-head-5f89-adf20:~$ nvidia-smi
Thu Nov  2 21:54:46 2023
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 495.29.05    Driver Version: 495.29.05    CUDA Version: 11.5     |
|-------------------------------+----------------------+----------------------+

This version of nvidia drivers does not support CUDA 11.8. This is problematic for many reasons, including the latest pytorch supporting only CUDA 11.8+.

In contrast, AWS and GCP run 5xx.yy nvidia drivers, which support newer cuda versions.

[Michaelvll]

This is being fixed by #2468

[Michaelvll]

This should be fixed by #2468. Closing this issue now.