feat: add package with secure boot public signing key #488

Job	Run time
Get CoreOS versions	4s
Get Build Info	1s
Build CoreOS (fedora-coreos, stable, -nvidia, -zfs, pr-107-)	3m 9s
Build CoreOS (fedora-coreos, stable, -nvidia, pr-107-)	2m 41s
Build uCore (ucore, stable, -nvidia, -zfs, pr-107-)	3m 24s
Build CoreOS (fedora-coreos, stable, -zfs, pr-107-)	2m 4s
Build uCore (ucore, stable, -nvidia, pr-107-)	3m 26s
Build CoreOS (fedora-coreos, testing, -nvidia, -zfs, pr-107-)	2m 49s
Build uCore (ucore, stable, -zfs, pr-107-)	1m 58s
Build uCore (ucore, stable, pr-107-)	2m 46s
Build CoreOS (fedora-coreos, testing, -nvidia, pr-107-)	2m 6s
Build uCore (ucore, testing, -nvidia, -zfs, pr-107-)	3m 15s
Build uCore (ucore, testing, -nvidia, pr-107-)	4m 15s
Build CoreOS (fedora-coreos, testing, -zfs, pr-107-)	1m 55s
Build uCore (ucore, testing, -zfs, pr-107-)	2m 30s
Build uCore (ucore, testing, pr-107-)	2m 52s
Build HCI (ucore, stable, -nvidia, -zfs, pr-107-)	2m 32s
Build HCI (ucore, stable, -nvidia, pr-107-)	2m 53s
Build HCI (ucore, stable, -zfs, pr-107-)	3m 9s
Build HCI (ucore, stable, pr-107-)	2m 33s
Build HCI (ucore, testing, -nvidia, -zfs, pr-107-)	3m 14s
Build HCI (ucore, testing, -nvidia, pr-107-)	2m 56s
Build HCI (ucore, testing, -zfs, pr-107-)	3m 14s
Build HCI (ucore, testing, pr-107-)	2m 40s
Check all builds successful	2s
	1h 2m 28s

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