feat(sycl): Add support for Intel GPUs with sycl (#1647) (#1660)

* feat(sycl): Add sycl support (#1647)

* onekit: install without prompts

* set cmake args only in grpc-server

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* cleanup

* fixup sycl source env

* Cleanup docs

* ci: runs on self-hosted

* fix typo

* bump llama.cpp

* llama.cpp: update server

* adapt to upstream changes

* adapt to upstream changes

* docs: add sycl

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Signed-off-by: Ettore Di Giacinto <mudler@localai.io>