Update release notes BEFORE pushing new AMIs to EKS

[llamahunter]

You continue to push new EKS AMI versions to SSM prior to updating their release notes. Please first update release notes before updating recommended version in SSM.
/aws/service/eks/optimized-ami/<kube-version>/amazon-linux-2/recommended/release_version

Environment:

• AWS Region: us-east-1
• Instance Type(s): m5.2xlarge
• EKS Platform version (use aws eks describe-cluster --name <name> --query cluster.platformVersion): eks.2
• Kubernetes version (use aws eks describe-cluster --name <name> --query cluster.version): 1.20
• AMI Version: 1.20.7-20211001
• Kernel (e.g. uname -a):
  Linux ip-10-191-144-183.ec2.internal 5.4.141-67.229.amzn2.x86_64 #1 SMP Mon Aug 16 12:51:43 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
• Release information (run cat /etc/eks/release on a node):

BASE_AMI_ID="ami-01725fc47587f08fc"
BUILD_TIME="Tue Sep 14 00:50:32 UTC 2021"
BUILD_KERNEL="5.4.141-67.229.amzn2.x86_64"
ARCH="x86_64"

[anish]

Might want to comment here aws/containers-roadmap#319

[stevehipwell]

@llamahunter I've linked this to aws/containers-roadmap#319.

[mmerkes]

We've updated our release to do this.