Bump sqlalchemy to 1.4 and database-related dependencies #3326

Job	Run time
Build frontend e2e test image	39s
Build backend e2e test image	45s
lint_core	12s
Build frontend unit test image	1m 2s
Lint mwdb-core web sources	41s
Build mwdb-core core image	2m 0s
Build mwdb-core web image	1m 8s
Perform frontend unit tests	31s
Perform backend e2e tests	2m 45s
Perform frontend e2e tests	1m 48s
Push test images on Docker Hub	0s
Push images on Docker Hub	0s
	11m 31s

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