Changed admin secret to the one created by the new Java operator

[stustison]

Related GH Issue

Closes

Additional Information

The "credential-(keycloak-name)" secret no longer exists when using the new Java operator to stand up Keycloak in K8s. It now uses "(keycloak-name)-initial-admin" This simply changes things to the new name so the old secret doesn't need to be manually created.

Checklist:

• [ ] Automated Tests
• [ ] Documentation changes if necessary
• [ ] (If required) Discussed on Keycloak DEV

[larhauga]

Hi, this contribution would be awesome, but there does not seem to be any traction in this repo. Would you consider adding this @vmuzikar?