v1.28.1

What's Changed

• Automated cherry pick of #15901: Implement node encryption by @hakman in #15947
• Automated cherry pick of #15935: Fix minor typos for karpenter setup.
  #15957: Configure Karpenter resources. by @danports in #15958
• Automated cherry pick of #15987: aws: Don't add dependency on additional CIDR for shared VPC by @hakman in #15988
• Automated cherry pick of #16022: fix instance group validation if using serverGroupName by @zetaab in #16023
• Upgrade golang.org/x/net to 0.17.0 by @johngmyers in #16033
• Upgrade Go to 1.20.10 by @johngmyers in #16035
• Automated cherry pick of #16038: Add support for --cluster-signing-duration KCM flag by @hakman in #16039
• Automated cherry pick of #16051: aws: Skip ASG cleanup on Karpenter managed IG deletion by @hakman in #16052
• Automated cherry pick of #16043: Update containerd to v1.7.7 by @hakman in #16047
• Automated cherry pick of #16085: Update Go to v1.21.4 by @hakman in #16086
• Release 1.28.1 by @hakman in #16093

Full Changelog: v1.28.0...v1.28.1