[EKS] [request]: Provide list/get nodes permissions to AmazonEKSAdminPolicy

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**Tell us about your request**
AmazonEKSAdminPolicy should have permissions to list/get nodes.

**Which service(s) is this request for?**
EKS

**Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?**
This is useful to check what nodes are part of the system and accordingly they can be managed. It helps users with limited admin access to check status of nodes and request users with wider access to help fix the issues.

**Are you currently working around this issue?**
Provide `AmazonEKSClusterAdminPolicy` access to those who want to only see the nodes

Start by reviewing the AmazonEKSAdminPolicy permissions and the EKS request details in this issue. Determine the permissions needed to list and get nodes, then confirm that the policy lets limited administrators inspect node status without granting the broader AmazonEKSClusterAdminPolicy access.

Written by the indexing model from the issue text.