Add ISO builds to CI: #108

Job	Run time
Prepare matrix JSON	2s
LinuxKit containers for arm64	14s
Kernel hook-latest-lts-amd64	4m 39s
LinuxKit containers for amd64	13s
Kernel armbian-uefi-x86-edge	1m 16s
Kernel hook-default-amd64	3m 51s
Kernel armbian-uefi-arm64-edge	57s
Kernel armbian-rockchip64-edge	56s
Kernel armbian-rk35xx-vendor	46s
Kernel hook-latest-lts-arm64	4m 12s
Kernel armbian-rk3588-edge	52s
Kernel armbian-bcm2711-current	48s
Kernel hook-default-arm64	3m 38s
Kernel armbian-meson64-edge	52s
Hook hook-latest-lts-amd64	1m 1s
Hook armbian-uefi-x86-edge	40s
Hook hook-default-amd64	55s
Hook armbian-uefi-arm64-edge	40s
Hook armbian-rockchip64-edge	39s
Hook armbian-rk35xx-vendor	35s
Hook hook-latest-lts-arm64	1m 0s
Hook armbian-rk3588-edge	38s
Hook armbian-bcm2711-current	36s
Hook hook-default-arm64	1m 4s
Hook armbian-meson64-edge	36s
Publish all Hooks to GitHub Releases	0s
Publish all Hooks to GitHub Releases for a tag	0s
	31m 40s

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