Build & Deploy container image #775

# to view logs

Job	Run time
unit-alpine image / stable release	2m 40s
unit-fs image / stable release	1m 35s
unit-gcs image / stable release	1m 53s
unit-pdo image / stable release	1m 35s
unit-s3 image / stable release	2m 9s
unit-alpine image / edge release	2m 25s
unit-fs image / edge release	1m 24s
unit-gcs image / edge release	2m 17s
unit-pdo image / edge release	1m 39s
unit-s3 image / edge release	2m 30s
	20m 7s

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