maybe fix chromebooks? #433

Job	Run time
live-iso (x86_64, flagship/flagship-live)	16s
image (x86_64, base/base-disk)	17s
live-iso (x86_64, gnome/gnome-live)	12s
image (x86_64, flagship/base-disk)	15s
live-iso (x86_64, kde/kde-live)	25s
image (x86_64, gnome/base-disk)	15s
live-iso (x86_64, xfce/xfce-live)	11s
image (x86_64, kde/base-disk)	15s
live-iso (aarch64, flagship/flagship-live)	2m 26s
image (x86_64, xfce/base-disk)	16s
live-iso (aarch64, gnome/gnome-live)	1m 48s
image (aarch64, base/base-disk)	1m 33s
live-iso (aarch64, kde/kde-live)	1m 49s
image (aarch64, flagship/base-disk)	1m 44s
live-iso (aarch64, xfce/xfce-live)	1m 27s
image (aarch64, gnome/base-disk)	1m 37s
image (aarch64, kde/base-disk)	1m 47s
image (aarch64, xfce/base-disk)	1m 13s
push-image	0s
	17m 46s

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