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Issue description

This is not high priority, just a cosmetic fix, as there is nothing OCP-version-specific in the images, but the following images are tagged with "4.12" in the registry, so their tag would probably need updating to "4.14" or something that is not tied to OCP version:

• ch05ge02: ocpdev-expense-service:4.12
• ch05lab: ocpdev-deployments-review:4.12
• ch06ge01: ocpdev-expense-service:4.12
• ch06lab: ocpdev-redis-quotes:4.12