step-registry: use centos:8 instead of tools

[bbguimaraes]

As originally done in #11247.
tools only exists in 4.5+ releases.

[openshift-ci-robot]

@bbguimaraes: The following tests failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
ci/rehearse/openshift/cluster-kube-apiserver-operator/master/k8s-e2e-gcp	2c3d757	link	/test pj-rehearse
ci/rehearse/openshift/installer/fcos/e2e-vsphere	2c3d757	link	/test pj-rehearse
ci/rehearse/openshift/installer/master/e2e-gcp-upi-xpn	2c3d757	link	/test pj-rehearse
ci/rehearse/openshift/installer/master/e2e-gcp-upi	2c3d757	link	/test pj-rehearse

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[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bbguimaraes, stevekuznetsov

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• ci-operator/step-registry/ipi/OWNERS [bbguimaraes,stevekuznetsov]

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[openshift-ci-robot]

@bbguimaraes: Updated the following 2 configmaps:

• step-registry configmap in namespace ci at cluster api.ci using the following files:
  • key ipi-conf-aws-ref.yaml using file ci-operator/step-registry/ipi/conf/aws/ipi-conf-aws-ref.yaml
  • key ipi-conf-ref.yaml using file ci-operator/step-registry/ipi/conf/ipi-conf-ref.yaml
• step-registry configmap in namespace ci at cluster app.ci using the following files:
  • key ipi-conf-aws-ref.yaml using file ci-operator/step-registry/ipi/conf/aws/ipi-conf-aws-ref.yaml
  • key ipi-conf-ref.yaml using file ci-operator/step-registry/ipi/conf/ipi-conf-ref.yaml

In response to this:

As originally done in #11247.
tools only exists in 4.5+ releases.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.