Build conda docker images

Fix magma installation inside docker container #401

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Run time

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Job	Run time
build-docker (11.8)	1m 18s
build-docker (11.8)	11m 42s
build-docker (12.1)	1m 35s
build-docker (12.1)	12m 44s
build-docker (cpu)	1m 36s
build-docker (cpu)	5m 4s
	33m 59s