🧹 Clean up test-infra and tools

[arybolovlev]

Description

The following changes have been done:

• Move aks-new to aks -- that is why changes look massive.
• Pin AWS and EKS provider versions.
• Split infra code: move variables to variables.tf and outputs to outputs.tf.
• Remove unused code from tools.
• Run terraform fmt in test-infra.
• Rename acceptance test job names.

Acceptance tests

• Have you added an acceptance test for the functionality being added?
• Have you run the acceptance tests on this branch?

Output from acceptance testing:

• KinD: https://github.com/hashicorp/terraform-provider-kubernetes/actions/runs/6511057298
• AKS: https://github.com/hashicorp/terraform-provider-kubernetes/actions/runs/6511047841
• EKS: https://github.com/hashicorp/terraform-provider-kubernetes/actions/runs/6511048612
• GKE: https://github.com/hashicorp/terraform-provider-kubernetes/actions/runs/6511049466

Release Note

Release note for CHANGELOG:

NONE.

References

N/A.

Community Note

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• If you are interested in working on this issue or have submitted a pull request, please leave a comment

[sheneska]

Thanks for the changes! 🚀

[arybolovlev]

GKE tests are failing for service-related tests due to some changes on the Google end. I will go ahead and merge this PR since it cleans up workflow and infra code and raise a new one to fix tests.