Karpenter v1.8.7

Changes

Pin ko to v0.18.1 to fix release image publish (release-v1.8.x) (#9374) #9374 (Derek Frank)other
Release-v1.8.x: cherry-pick AWS SDK client timeout fixes (#9318, #9320) (#9332) (Derek Frank)other

2 lines2 othertyped from the source notes

context

The change list is the project's own release notes, sorted into change types by fixed rules. See the methodology.