InfinispanOperatorProvisionerTest is failing CI checks when using named user accounts with different privileges

[fabiobrz]

For #46 a change has been made to the CI shell script in order to make the XTF configuration work with two different users (admin and master) with different privileges.
This is making the InfinispanOperatorProvisionerTest fail with the following traces:

...
[ERROR] org.jboss.intersmash.testsuite.provision.openshift.InfinispanOperatorProvisionerTest.basicProvisioningTest  Time elapsed: 19.192 s  <<< ERROR!
io.fabric8.kubernetes.client.KubernetesClientException: Failure executing: POST at: https://api.ci-ocp-4-12-amd64-aws-us-east-1-pzzzf.hive.aws.ci.openshift.org:6443/apis/infinispan.org/v1/namespaces/intersmash-test/infinispans. Message: Forbidden! User tadmin doesn't have permission. infinispans.infinispan.org is forbidden: User "tuser" cannot create resource "infinispans" in API group "infinispan.org" in the namespace "intersmash-test".
...

And this can only be solved by making tuser (i.e. the master account with regular privileges)a cluster-admin` as well.

We should investigate why this happens only on OpenShift CI infra and not locally or in internal runs/cluster.

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• Environment: testsuite
• Steps to reproduce: ~/apache-maven-3.8.6/bin/mvn test -pl testsuite/ -Dtest=InfinispanOperatorProvisionerTest

[fabiobrz]

This can be closed. CI checks are no longer run by OpenShift org Prow jobs, and the issue doesn't pop up in the latest internal CI checks runs.