CertGeneratorImage to reference registry.redhat.io

[ChristianZaccaria]

Issue link

Jira: https://issues.redhat.com/browse/RHOAIENG-8274

What changes have been made

• CertGeneratorImage to reference registry.redhat.io

Verification steps

• If the CodeFlare-Operator was previously installed, please delete the codeflare-operator-config configmap before re-installing.
• Install CodeFlare-Operator from this branch
• Create a raycluster using a demo notebook, and check that the init containers are using the image specified in the configmap and that the raycluster pods are created succesfully.

Checks

• [ ] I've made sure the tests are passing.
• Testing Strategy
  • [ ] Unit tests
  • [ ] Manual tests
  • [ ] Testing is not required for this change

[sutaakar]

/lgtm

[sutaakar]

/approve

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sutaakar

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/project-codeflare/codeflare-operator/blob/main/OWNERS)~~ [sutaakar] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment