Upgrade RHOSAK to Strimzi 0.29.

WHAT

Upgrade the service from using from Strimzi 0.26 to Strimzi 0.29. 

In Scope

• Upgrade to the latest Strimzi version bringing software currency and removing the current reliance of backports features/defect fixes.

Not in Scope

• Adopt the new features of Strimzi 0.29 (e.g. podsets) - this will be separate Epics.
• Increment Kafka/Zookeeper versions etc. Kafka 3.0.1 remains supported from (https://strimzi.io/docs/operators/0.29.0/deploying.html#assembly-upgrading-kafka-versions-str)

HOW

Review https://github.com/strimzi/strimzi-kafka-operator/blob/main/CHANGELOG.md and work out the changes the upgrade will cause in Managed Kafka.

• Update pipeline and make bundle release
  • Documentation will be published on the source https://source.redhat.com/communitiesatredhat/communities_of_practice/cross_cutting_co/cloud_services_cop/cloud_services/rhosak  -> Current location: https://docs.google.com/document/d/1D9fnWRrnFGupifjr_0MdmrUBy703elYfVTmZcOVoRLc/edit#

• Upgrading existing instances to be managed by the new Strimzi version.
  • https://github.com/bf2fc6cc711aee1a0c2a/kas-sre-sops/blob/17888f65bee8cea3f9fc8fe93043b28d95f0f2dc/sops/upgrade/upgrade_kafka_components.asciidoc

Questions:

Any changes to Strimzi resource footprint?

DONE

• RHOSAK bundle produced including Strimzi 0.26 and Strimzi 0.29
• RHOSAK bundle released to production
• Existing kafka instances migrated to that they are managed by the Strimzi 0.29 rather than the Strimzi 0.26 one.
• No Kafka upgrade (kafka instances remain at 3.0.1)