chore(deps): update ksmanis/stage3 docker tag to v20230731 #1322

Job	Run time
386:tcp image	4m 47s
386:ssh image	5m 0s
amd64:tcp image	5m 55s
amd64:ssh image	4m 31s
arm/v6:tcp image	44m 29s
arm/v6:ssh image	35m 13s
arm/v7:tcp image	44m 14s
arm/v7:ssh image	33m 2s
arm64:tcp image	39m 11s
arm64:ssh image	35m 25s
ppc64le:tcp image	37m 57s
ppc64le:ssh image	38m 12s
docker.io:tcp-master-2fb2748 manifest	6s
docker.io:ssh-master-2fb2748 manifest	10s
docker.io:tcp-master manifest	12s
docker.io:ssh-master manifest	10s
docker.io:tcp-20230731-sha256-f703bde625fa4c6113dc7bcd97627b45a1c5c210103044dd9479b2cca5af74d0 manifest	6s
docker.io:ssh-20230731-sha256-f703bde625fa4c6113dc7bcd97627b45a1c5c210103044dd9479b2cca5af74d0 manifest	6s
docker.io:tcp manifest	10s
docker.io:ssh manifest	15s
ghcr.io:tcp-master-2fb2748 manifest	11s
ghcr.io:ssh-master-2fb2748 manifest	12s
ghcr.io:tcp-master manifest	10s
ghcr.io:ssh-master manifest	12s
ghcr.io:tcp-20230731-sha256-f703bde625fa4c6113dc7bcd97627b45a1c5c210103044dd9479b2cca5af74d0 manifest	11s
ghcr.io:ssh-20230731-sha256-f703bde625fa4c6113dc7bcd97627b45a1c5c210103044dd9479b2cca5af74d0 manifest	10s
ghcr.io:tcp manifest	11s
ghcr.io:ssh manifest	20s
	5h 30m 48s

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