Bump sqlalchemy to 1.4 and database-related dependencies #3327

Job	Run time
Build backend e2e test image	50s
lint_core	10s
Build frontend e2e test image	48s
Lint mwdb-core web sources	43s
Build frontend unit test image	1m 7s
Build mwdb-core core image	1m 48s
Build mwdb-core web image	1m 15s
Perform frontend unit tests	29s
Perform frontend e2e tests	1m 49s
Perform backend e2e tests	2m 45s
Push test images on Docker Hub	0s
Push images on Docker Hub	0s
	11m 44s

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