test: Rework test infrastructure #255

Job	Run time
format_code / fmt	14s
build_dev_container / build_dev_container	1m 33s
integration_test / test	5m 4s
lint / lint	4m 56s
unit_test / test	5m 22s
build / build	6m 10s
build_release_image / build	24s
	23m 43s

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