Always make `docker_registry` registries available #8496

Job	Run time
Ruby analysis (macos-latest, linked)	1m 50s
Ruby analysis (macos-latest, nightly-latest)	1m 37s
Ruby analysis (ubuntu-latest, linked)	1m 23s
Ruby analysis (ubuntu-latest, default)	46s
Ruby analysis (ubuntu-latest, nightly-latest)	42s
Ruby analysis (macos-latest, default)	47s
	7m 5s

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