feat: Add kubernetes standard labels to avoid manual mistakes on the managed aws-auth configmap

[gillg]

Description

Add labels to avoid manual mistakes on managed configmap. It adds 2 labels :

apiVersion: v1
kind: ConfigMap
metadata:
  labels:
    app.kubernetes.io/managed-by: Terraform
    terraform.io/module: terraform-aws-modules.eks.aws
  name: aws-auth
  namespace: kube-system
data:
  mapAccounts: |
    []
  mapRoles: |
    ........
  mapUsers: |
    []

By this way and "standard" managed-by label, we know this file is provided and enforced by terraform. You should not edit it manualy.

Checklist

• CI tests are passing
• [NC] README.md has been updated after any changes to variables and outputs. See https://github.com/terraform-aws-modules/terraform-aws-eks/#doc-generation

[daroga0002]

@gillg CI is failing as you must change PR titlle as per https://github.com/terraform-aws-modules/terraform-aws-eks/blob/master/.github/CONTRIBUTING.md#semantic-pull-requests

I belive this will be improvment: so add this on beginning of tittle.

[barryib]

@gillg can you please rebase your branch from master and re-generate the terraform docs to fix the CI.

[gillg]

Everything is OK

[barryib]

Thanks @gillg for your contribution.

[github-actions]

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