CI for Backend and Frontend #3543

Job	Run time
backend-black	10s
backend-isort	9s
backend-flake8	13s
backend-tests	1m 32s
backend-zpretty	10s
classic-black	10s
classic-flake8	14s
classic-isort	13s
classic-zpretty	21s
frontend-eslint	1m 5s
frontend-prettier	8s
frontend-tests	1m 1s
i18n sync	58s
release (backend, backend, Dockerfile)	5m 17s
release (frontend, frontend, Dockerfile)	7m 49s
release (classic, classic, Dockerfile)	5m 45s
	25m 15s

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