Switch hosting of devel packages from Google cloud to Github releases… #3675

Job	Run time
Skip job for forks	1s
Build and run (2-bionic)	41m 19s
Build and run (3-ml-shared-bionic)	39m 30s
Build and run (4-shared-bionic)	40m 13s
Build and run (5-ml-focal)	42m 53s
	2h 43m 56s

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