auth saves userinfo to db

[MalinAhlberg]

Related issue(s) and PR(s)
This PR closes https://github.com/NBISweden/LocalEGA-SE-Deployment/issues/525.

Description

• a db user for auth is added
• auth connects to the db
• auth saves information about the user on oidc logins
• if the user logs in again, the old info is overwritten

How to test

• Use starter-kit-storage-and-interfaces, branch feature/auth-add-userinfo-to-db together with starter-kit-lsaai-mock, as described in the Readme.
• Visit http://localhost:8085/ from your browser and log in.
• Check that the logged in user's info is added to the db: docker exec -it postgres psql postgresql://postgres:rootpass@postgres/sda -At -c "select * from sda.userinfo"

Extra info
I will be away next week, so I put the code here, in case someone wants to take care of it. It's working when tested manually with lsaai-mock, but there are no integration tests and also no unit tests for auth. Adding integration tests is not very straight forward, though, so it might be out of scope for this issue.
Also the chart tests fail, but that might be unrelated to this PR.