Fixes for `nix-everything` wrapper #1721

Job	Run time
eval	52s
vm_tests	13m 23s
tests on ubuntu	8m 36s
Check Docker secrets present for installer tests	1s
tests on macos	8m 48s
installer test on ubuntu	33s
installer test on macos	1m 23s
flake_regressions	1m 8s
docker_push_image	0s
	34m 44s

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