CI for Backend and Frontend #3439

Job	Run time
backend-tests	1m 41s
backend-flake8	10s
backend-isort	13s
backend-black	17s
backend-zpretty	15s
classic-black	11s
classic-flake8	12s
classic-isort	20s
classic-zpretty	14s
frontend-eslint	1m 0s
i18n sync	1m 25s
frontend-prettier	11s
frontend-tests	1m 8s
release (backend, backend, Dockerfile)	6m 28s
release (frontend, frontend, Dockerfile)	6m 25s
release (classic, classic, Dockerfile)	4m 58s
	25m 8s

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