build

chore(deps): update docker/dockerfile docker tag to v1.12.0 #1820

Job	Run time
386:tcp image	6m 8s
386:ssh image	6m 2s
386:tcp-ccache image	9m 17s
386:ssh-ccache image	9m 15s
amd64:tcp image	2m 40s
amd64:ssh image	2m 50s
amd64:tcp-ccache image	3m 16s
amd64:ssh-ccache image	3m 0s
arm/v6:tcp image	6m 49s
arm/v6:ssh image	6m 50s
arm/v6:tcp-ccache image	10m 26s
arm/v6:ssh-ccache image	10m 57s
arm/v7:tcp image	5m 39s
arm/v7:ssh image	5m 36s
arm/v7:tcp-ccache image	8m 43s
arm/v7:ssh-ccache image	8m 17s
arm64:tcp image	6m 6s
arm64:ssh image	5m 41s
arm64:tcp-ccache image	8m 33s
arm64:ssh-ccache image	8m 37s
ppc64le:tcp image	5m 54s
ppc64le:ssh image	5m 42s
ppc64le:tcp-ccache image	8m 51s
ppc64le:ssh-ccache image	8m 34s
docker.io:tcp-pr-74-b62678d manifest	10s
docker.io:ssh-pr-74-b62678d manifest	8s
docker.io:tcp-ccache-pr-74-b62678d manifest	6s
docker.io:ssh-ccache-pr-74-b62678d manifest	7s
docker.io:tcp-pr-74 manifest	10s
docker.io:ssh-pr-74 manifest	8s
docker.io:tcp-ccache-pr-74 manifest	4s
docker.io:ssh-ccache-pr-74 manifest	4s
ghcr.io:tcp-pr-74-b62678d manifest	5s
ghcr.io:ssh-pr-74-b62678d manifest	12s
ghcr.io:tcp-ccache-pr-74-b62678d manifest	8s
ghcr.io:ssh-ccache-pr-74-b62678d manifest	8s
ghcr.io:tcp-pr-74 manifest	6s
ghcr.io:ssh-pr-74 manifest	10s
ghcr.io:tcp-ccache-pr-74 manifest	9s
ghcr.io:ssh-ccache-pr-74 manifest	7s
	2h 45m 45s

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