build and push amd64 images to Docker Hub

build and push amd64 images to Docker Hub #176

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Run time

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Job	Run time
build-base	2m 10s
build (firefox)	53s
build (chromium)	1m 8s
build (google-chrome)	1m 4s
build (ungoogled-chromium)	52s
build (microsoft-edge)	1m 8s
build (brave)	56s
build (vivaldi)	1m 11s
build (opera)	1m 3s
build (tor-browser)	53s
build (remmina)	29s
build (vlc)	35s
build (xfce)	33s
build (kde)	3m 41s
	16m 36s