[BACKEND] Migrate new Keycloak Portal URL

[ds-lcapellino]

As a TraceX Admin,
I want to migrate to the new keycloak portal url,
so that the application is running again.

Hints / Details

Mail from Julia Jeroch:

Dear all,

please note that we started to reset the Integration Env. to get ready for the 24.05. E2E tests.
As a result, access to the portal and connected applications will be extremely limited until the E2E tests begin.

I understand that this may have a significant impact on many of you. To mitigate the inconvenience, we enabled a special support function. If you still need/want to perform actions such as EDC communications (version < 0.7 RC1), test runs, etc. using previously used users (both technical and functional), you can proceed by switching your connector and/or app instances to the following Keycloak token URL:

Token URL: https://centralidp-v2.int.demo.catena-x.net/auth/realms/CX-Central/protocol/openid-connect/token

Please note that this IDP instance is our previous INT Keycloak instance, which is now available under a new endpoint path. All user accounts and service accounts are still accessible with your existing credentials.

Greetings,
Julia

Acceptance Criteria

• all environments are using the intermediate keycloak url
• all environments are working again

Out of Scope

• ...

[mkanal]

Duplicate of #855