[issue 144] - Support Red Hat Build of Keycloak (new productised version of Keycloak)

[fabiobrz]

Description

Make the Intersmash provisioning tooling for Keycloak support its latest product counterpart too, i.e. Red Hat Build of keycloak (RHBK)

Fix #144

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change
• Chore (non-breaking change which doesn't affect codebase;
  test, version modification, documentation, etc.)

Checklist

• Code contributed by me aligns with current project license: Apache 2.0
• Pull Request contains a description of the changes
• Pull Request does not include fixes for multiple issues/topics
• Code is self-descriptive and/or documented
• I have implemented unit tests to cover my changes
• I tested my code in OpenShift

[fabiobrz]

/retest

[fabiobrz]

/test intersmash-e2e

[fabiobrz]

Adding this comment to track the two verification jobs:

• community

• prod

before removing the last commit (SHA is 3206f0e of rfuture reference) which is provided by #162 instead.

As the above mentioned jobs are green, the changes are now ready to be reviewed.

Update: rebased after #162 has been merged.

[marekkopecky]

LGTM, merging, thank you!