fix: Updated deprecated data.aws_region.current.name

[dsantanu]

What does this PR do?

With the latest v6 AWS provider, name argument in aws_region data-source has been deprecated and replaced by region. At the moment it throws in the following warning:

Warning: Deprecated attribute

on .terraform/modules/eks_addons_infrastructure_clusters_euc1/main.tf line 21, in locals:
21: region = data.aws_region.current.name

The attribute "name" is deprecated. Refer to the provider documentation for
details.

(and 4 more similar warnings elsewhere)

This PR replaces the line region = data.aws_region.current.name -> region = data.aws_region.current.region

Motivation

• Resolves Deprecated attribute - data.aws_region.current.name when using v6 aws provider #471

More

• Yes, I have tested the PR using my local account setup (Provide any test evidence report under Additional Notes)
• Yes, I ran pre-commit run -a with this PR

For Moderators

• E2E Test successfully complete before merge?

Additional Notes