NOS: Okta migration phase 1 - Technical implementation

Goal of this epic is to have all our customer that can login to Connect through Okta, with their password and that we do not rely anymore on LDAP + CAS.

In terms of infra, the deployment might not be changed, we'll still deploy LDAP n CAS but don't rely on them anymore.

We'll need to:

• Define an SQL userDirectory in Connect, and remove LDAP references
• Script user migration based on an LDAP ldiff, either in SQL, and Okta REST API
• Update our code base to create user in Okta when needed. Either customers, either trials.
• Update our code base to ensure deletion is done as well in Okta (mostly for trials)
• Define and execute a go to production plan that execute migration script, and deploy update.

Risks to handle: technical risks with the migration
Outcome: everyone is migrated and can login using Okta