workflows: Add vLLM workflow for LLM serving #22

Job	Run time
Build kdevops Container (debian)	3m 23s
Build kdevops Container (fedora)	1m 31s
Build kdevops Container (opensuse)	2m 3s
Linux A/B Tests (fedora)	47s
Linux A/B Tests (opensuse)	51s
Linux A/B Tests (debian)	1m 14s
Quick Config Tests (blktests_nvme) on fedora	48s
Quick Config Tests (blktests_nvme) on opensuse	49s
Quick Config Tests (lbs-xfs) on debian	55s
Quick Config Tests (xfs_reflink_4k) on debian	54s
Quick Config Tests (xfs_reflink_4k) on opensuse	54s
Quick Config Tests (blktests_nvme) on debian	54s
Quick Config Tests (linux-ab-testing) on fedora	49s
Quick Config Tests (linux-ab-testing) on debian	56s
Quick Config Tests (lbs-xfs) on fedora	43s
Quick Config Tests (linux-ab-testing) on opensuse	50s
Quick Config Tests (xfs_reflink_4k) on fedora	46s
Quick Config Tests (lbs-xfs) on opensuse	50s
	19m 57s

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