CI for Backend and Frontend #3455

Job	Run time
backend-flake8	17s
backend-black	32s
backend-tests	2m 16s
backend-isort	13s
backend-zpretty	18s
classic-black	12s
classic-flake8	19s
classic-isort	12s
classic-zpretty	33s
frontend-eslint	58s
i18n sync	1m 19s
frontend-prettier	36s
frontend-tests	1m 0s
release (backend, backend, Dockerfile)	6m 11s
release (frontend, frontend, Dockerfile)	7m 5s
release (classic, classic, Dockerfile)	6m 1s
	28m 2s

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