refactor: Remove OIDC_CREATE_USER configuration and generate an uuid in a OIDC created user password

[zurdi15]

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[github-actions]

Test Results

92 tests  ±0   92 ✅ ±0   26s ⏱️ -3s
 1 suites ±0    0 💤 ±0 
 1 files   ±0    0 ❌ ±0 

Results for commit f7a4699. ± Comparison against base commit d457ce0.

♻️ This comment has been updated with latest results.

[dataway]

Should not derive the username from the email claim. It would be better to use the preferred_username claim.

Neither the email not the preferred_username are unique however. See OIDC Core, section 5.7. (https://openid.net/specs/openid-connect-core-1_0.html#ClaimStability) Ideally the claims sub and iss should be stored in the database. This would also allow future support for multiple IdPs.

[gantoine]

Ideally the claims sub and iss should be stored in the database.

This is something we (or another contributer) can tackle in a future release, ad I'm sure there is more functionality we'll need to add in the future around openid/sso.