Pass AWS region, kubernetes_version to terraform scripts

[iameskild]

Fixes | Closes | Resolves #1490

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Changes introduced in this PR:

• There were two lines missing that are needed to pass AWS region and kubernetes version to the Terraform scripts.

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[viniciusdc]

Thanks, @iameskild. Strange that this was not caught before... I was pretty sure #1271 had fixed that missing region problem. Glad you found this!