build

chore(deps): update docker/dockerfile docker tag to v1.12.0 #1830

Job	Run time
386:tcp image	6m 28s
386:ssh image	6m 9s
386:tcp-ccache image	12m 34s
386:ssh-ccache image	12m 8s
amd64:tcp image	2m 41s
amd64:ssh image	2m 46s
amd64:tcp-ccache image	3m 2s
amd64:ssh-ccache image	3m 4s
arm/v6:tcp image	6m 45s
arm/v6:ssh image	6m 47s
arm/v6:tcp-ccache image	14m 13s
arm/v6:ssh-ccache image	14m 15s
arm/v7:tcp image	5m 28s
arm/v7:ssh image	5m 34s
arm/v7:tcp-ccache image	11m 37s
arm/v7:ssh-ccache image	10m 49s
arm64:tcp image	5m 53s
arm64:ssh image	5m 38s
arm64:tcp-ccache image	11m 17s
arm64:ssh-ccache image	11m 15s
ppc64le:tcp image	5m 56s
ppc64le:ssh image	5m 53s
ppc64le:tcp-ccache image	11m 20s
ppc64le:ssh-ccache image	11m 4s
docker.io:tcp-pr-74-a6453a7 manifest	4s
docker.io:ssh-pr-74-a6453a7 manifest	11s
docker.io:tcp-ccache-pr-74-a6453a7 manifest	4s
docker.io:ssh-ccache-pr-74-a6453a7 manifest	11s
docker.io:tcp-pr-74 manifest	5s
docker.io:ssh-pr-74 manifest	4s
docker.io:tcp-ccache-pr-74 manifest	4s
docker.io:ssh-ccache-pr-74 manifest	5s
ghcr.io:tcp-pr-74-a6453a7 manifest	8s
ghcr.io:ssh-pr-74-a6453a7 manifest	6s
ghcr.io:tcp-ccache-pr-74-a6453a7 manifest	5s
ghcr.io:ssh-ccache-pr-74-a6453a7 manifest	6s
ghcr.io:tcp-pr-74 manifest	5s
ghcr.io:ssh-pr-74 manifest	8s
ghcr.io:tcp-ccache-pr-74 manifest	8s
ghcr.io:ssh-ccache-pr-74 manifest	8s
	3h 14m 18s

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