Changelog

General

• Update k/k vendor to 1.26.15 (#6639)
• Remove unneeded node groups regardless of scale down being in cooldown (#6504)

AWS

• Cache instance requirements (#6623)

Images

• registry.k8s.io/autoscaling/cluster-autoscaler:v1.26.8
• registry.k8s.io/autoscaling/cluster-autoscaler-arm64:v1.26.8
• registry.k8s.io/autoscaling/cluster-autoscaler-amd64:v1.26.8

Full Changelog: cluster-autoscaler-1.26.7...cluster-autoscaler-1.26.8