update build.sh #15

Job	Run time
generate_matrix	1m 0s
update_flake	52s
build_images (x86_64, linux, server, proxmox)	16m 17s
check_flake	3m 54s
build_images (x86_64, linux, server, raw-efi)	31m 43s
build_images (x86_64, linux, server, iso)	39m 38s
build_images (x86_64, linux, bri, proxmox)	4m 0s
build_images (x86_64, linux, bri, raw-efi)	4m 31s
build_images (x86_64, linux, bri, iso)	38m 23s
build_flake (cb)	55s
build_flake (pyEnv)	1m 44s
build_flake (sysdo)	1m 30s
push_update	0s
	2h 24m 27s

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