Claim Helm repo on ArtifactHub

**Describe the feature**
I'd like AWS to claim the ArtifactHub Helm Repo for [aws-node-termination-handler](https://artifacthub.io/packages/helm/aws-node-termination-handler/aws-node-termination-handler).

This is a mirror of https://github.com/aws/karpenter-provider-aws/issues/5306.

**Is the feature request related to a problem?**
An officially owned repo on Artifact hub is the gold standard.

**Describe alternatives you've considered**
n/a

CC @bwagner5 @jonathan-innis th

Start with the linked ArtifactHub package for aws-node-termination-handler and review the mirrored karpenter-provider-aws issue for context. Determine the process for claiming the Helm repository on ArtifactHub; done means the repository is officially owned by AWS rather than remaining an unclaimed mirror.

Written by the indexing model from the issue text.