[GHA] Uplift Linux IGC Dev RT version to igc-dev-aa8964c#15883

bb-sycl wants to merge 1 commit intosyclintel/llvm:syclfrom

ci/update_gpu_driver-linux-igc-dev-aa8964cintel/llvm:ci/update_gpu_driver-linux-igc-dev-aa8964cCopy head branch name to clipboard