Update dependencies, add testing

[Nuru]

what

• Update dependencies
• Add basic testing

why

• Bring in new features and bug fixes. In particular, check aud field of OIDC assertion for EKS IRSA "assume role".
• Because of the nature of this module, it did not have the testing Cloud Posse wants all modules to undergo. Although the testing added in this module is minimal, it does validate that the module is able to deploy a Helm chart without obvious errors, which is better than nothing.

references

• https://github.com/cloudposse/terraform-aws-eks-iam-role/releases/tag/2.0.0
• Closes Add tests #15
• Supersedes and closes Add tests #16
• Supersedes and closes chore(deps): update terraform cloudposse/eks-iam-role/aws to v1.2.0 - abandoned #35
• Supersedes and closes Update Terraform cloudposse/eks-iam-role/aws to v2 (main) #39

notes

Using aws-node-termination-handler as the test deployment was not my idea, it was mostly set up by the pre-existing code. A better test would allow for functional testing that everything installed is working correctly, but that would take significantly more time to implement.

[bridgecrew]

Bridgecrew has found errors in this PR ⬇️

[Nuru]

/terratest