broken link in external keycloak guide

[hamza-m-masood]

https://docs.camunda.io/docs/self-managed/identity/user-guide/configuration/connect-to-an-existing-keycloak/
The link is broken in this sentence:

A basic understanding of administering realms and clients in Keycloak.

cc @conceptualshark

[akeller]

@hamza-m-masood can we use the latest URL? https://www.keycloak.org/docs/latest/server_admin/#assembly-managing-clients_server_administration_guide? Or does it need to be tied to a specific version? Our supported environment page shows Keycloak 24 & 25 for 8.6+, but I don't know how much we should expect this page to change.

[hamza-m-masood]

@akeller
I think this URL seems fine. The UI does not change much and this is just about getting the user to have a basic understanding and gaining general knowledge about clients. No need to be very specific.