feat: add nvidia builds to ucore #371

Job	Run time
Get Build Info	2s
Get CoreOS versions	7s
Build uCore (ucore, stable, -nvidia, -zfs, pr-66-)	3m 49s
Build CoreOS ZFS (fedora-coreos-zfs, stable, pr-66-)	2m 33s
Build uCore (ucore, stable, -nvidia, pr-66-)	3m 57s
Build CoreOS ZFS (fedora-coreos-zfs, testing, pr-66-)	2m 25s
Build uCore (ucore, stable, -zfs, pr-66-)	3m 46s
Build uCore (ucore, stable, pr-66-)	2m 37s
Build uCore (ucore, testing, -nvidia, -zfs, pr-66-)	4m 16s
Build uCore (ucore, testing, -nvidia, pr-66-)	5m 3s
Build uCore (ucore, testing, -zfs, pr-66-)	3m 37s
Build uCore (ucore, testing, pr-66-)	3m 44s
Build HCI (ucore, stable, -nvidia, -zfs, pr-66-)	3m 14s
Build HCI (ucore, stable, -nvidia, pr-66-)	3m 33s
Build HCI (ucore, stable, -zfs, pr-66-)	3m 35s
Build HCI (ucore, stable, pr-66-)	3m 49s
Build HCI (ucore, testing, -nvidia, -zfs, pr-66-)	3m 40s
Build HCI (ucore, testing, -nvidia, pr-66-)	3m 26s
Build HCI (ucore, testing, -zfs, pr-66-)	4m 15s
Build HCI (ucore, testing, pr-66-)	3m 29s
	1h 4m 57s

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