chore: switch to new ISO builder action #93

Job	Run time
Build (amd64, 39, base)	2m 56s
Build (amd64, 39, silverblue)	2m 52s
Build (amd64, 39, kinoite)	3m 2s
Build (amd64, 40, base)	2m 26s
Build (amd64, 40, silverblue)	2m 39s
Build (amd64, 40, kinoite)	2m 53s
Build (amd64, rawhide, base)	2m 34s
Build (amd64, rawhide, silverblue)	3m 50s
Build (amd64, rawhide, kinoite)	2m 39s
Build (arm64, 39, base)	2m 35s
Build (arm64, 39, silverblue)	2m 44s
Build (arm64, 39, kinoite)	3m 5s
Build (arm64, 40, base)	2m 13s
Build (arm64, 40, silverblue)	2m 31s
Build (arm64, 40, kinoite)	2m 52s
Build (arm64, rawhide, base)	2m 28s
Build (arm64, rawhide, silverblue)	2m 24s
Build (arm64, rawhide, kinoite)	2m 37s
Check all builds successful	1s
	49m 21s

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