Increase Kind apiserver event TTL from 1h to 4h

[delthas]

Summary

• Bumps kube-apiserver --event-ttl from the default 1h to 4h in the Kind CI cluster configuration
• Adds a ClusterConfiguration kubeadm patch in bootstrap-kind.sh

Context

During the investigation of Azure archive test flakiness (PR #2340, documented in ZENKO-5216), we found that Kubernetes events from the failure window were gone by the time artifacts were collected.

The failing archive tests ran around 06:36, but kind export logs didn't execute until ~08:22 — nearly 2 hours later. With the default 1-hour TTL, all events from the test window (pod scheduling, container restarts, liveness probe failures) had been garbage-collected by the apiserver. This left us unable to determine whether sorbet-fwd or sorbet-azure experienced restarts or probe failures during the critical window.

Increasing the TTL to 4 hours ensures events survive for the full duration of any CI job, making them available in the kind export logs output alongside the Fluent Bit persistent logs added in PR #2350.

Issue: ZENKO-5217

[bert-e]

Hello delthas,

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[bert-e]

Waiting for approval

The following approvals are needed before I can proceed with the merge:

• the author

• 2 peers