Update README with fresh OS and drivers (#5427)

Author: kwasd

.github/README.md

@@ -10,14 +10,15 @@ Intel® XPU Backend for Triton\* is a out of tree backend module for [Triton](ht
 
 * Operating systems:
   * [Ubuntu 22.04](http://releases.ubuntu.com/22.04)
+  * [Ubuntu 24.04](http://releases.ubuntu.com/24.04)
 * GPU Cards:
   * [Intel® Data Center GPU Max Series](https://www.intel.com/content/www/us/en/products/details/discrete-gpus/data-center-gpu/max-series.html)
   * [Intel® Data Center Flex Series](https://www.intel.com/content/www/us/en/products/details/discrete-gpus/data-center-gpu/flex-series.html)
   * [Intel® Arc A770](https://www.intel.com/content/www/us/en/products/sku/229151/intel-arc-a770-graphics-16gb/specifications.html)
   * [Intel® Arc B580](https://www.intel.com/content/www/us/en/products/sku/241598/intel-arc-b580-graphics/specifications.html)
 * GPU Drivers:
   * Latest [Long Term Support (LTS) Release](https://dgpu-docs.intel.com/driver/installation.html)
-  * Latest [Rolling Release](https://dgpu-docs.intel.com/driver/installation-rolling.html)
+  * Latest [The Kobuk team Intel® Graphics PPA](https://launchpad.net/~kobuk-team/+archive/ubuntu/intel-graphics)
 * Toolchain:
   * [Intel® Deep Learning Essentials 2025.2.1](https://www.intel.com/content/www/us/en/developer/tools/oneapi/base-toolkit-download.html?packages=dl-essentials&dl-lin=offline&dl-essentials-os=linux)