Change Keycloak admin login ENV variables

[jedla97]

The KEYCLOAK_ADMIN and KEYCLOAK_ADMIN_PASSWORD were depracated with Keycloak 26. I spot this message when looking at container log.

Don't know if we want to move now as the new ENV variables are not available at older version of Keycloak.

The change happend in keycloak/keycloak#31114 and it's documented here (Somehow this one paragraph miss the release notes so I miss it when bumping the Keycloak version)

[github-actions]

🎊 PR Preview 9289bab has been successfully built and deployed to https://quarkus-pr-main-45432-preview.surge.sh/version/main/guides/

• Images of blog posts older than 3 months are not available.
• Newsletters older than 3 months are not available.

[quarkus-bot]

Status for workflow Quarkus Documentation CI

This is the status report for running Quarkus Documentation CI on commit 69f3713.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

Warning

There are other workflow runs running, you probably need to wait for their status before merging.

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit 69f3713.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.

[gsmet]

Will let @sberyozkin approve and merge but wanted to say thanks for spotting it and creating the PR!