Improved E2E testing for the karpenter Node Lease Garbage Collector

[engedaam]

Description

What problem are you trying to solve?

• Due to a node lease leak caused by https://github.com/kubernetes/kubernetes/issues/109777, karpenter has implemented a lease garbage collector to delete leaked lease: https://github.com/aws/karpenter-core/pull/471

• karpenter will need additional E2E testing that simulates a Kubelet creating a lease without an ownerReference, and the karpenter garbage collector cleaning it up

• This was resolved in upstream. However, until the fix is back ported to all supported EKS version karpenter will need additional testing

How important is this feature to you?

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[nilaygit-10721]

please assign me this issue