iso: update kernel lts version to 6.6.102

[prezha]

testing - re: issue with kube-proxy, kvm driver and k8s v1.34.*

ref: #21397 (comment)
ref: https://kubernetes.slack.com/archives/C09QYUH5W/p1756131900526569?thread_ts=1754135835.803739&cid=C09QYUH5W
ref: #21398

[k8s-ci-robot]

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This pull-request has been approved by: prezha

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[prezha]

/ok-to-build-iso

[nirs]

Can you update the title to match the actual version?

[prezha]

/ok-to-build-iso

[prezha]

/ok-to-build-iso

[minikube-bot]

Hi @prezha, we have updated your PR with the reference to newly built ISO. Pull the changes locally if you want to test with them or update your PR further.

[prezha]

/ok-to-build-iso

[prezha]

/ok-to-build-iso

[prezha]

/ok-to-build-iso

[minikube-bot]

Hi @prezha, we have updated your PR with the reference to newly built ISO. Pull the changes locally if you want to test with them or update your PR further.

[medyagh]

ok-to-test

[nirs]

Can you squash the kernel change to one commit? Keeping temporary debugging commits makes it harder to review and we don't want such commit in git history.

Updating the kernel makes sense for minkube 1.38 so we have enough time to detect issues. But we may want to move to newer kernel - when we updated to 6.6 6.12 build did not work, but it may be good now.

[prezha]

rebased to current master head and squashed commits

note that this was only for testing - for ruling out the kernel version being the problem for the issue with kube-proxy, which proved to be correct assumption, ie, i haven't looked into if we need some additional kernel config changes as well