feat: Use aws_iam_role_policies_exclusive

[kimxogus]

Description

Moved inline_policy in aws_iam_role to aws_iam_role_policy and aws_iam_role_policies_exclusive as force_detach_policies is true.

Motivation and Context

inline_policy block in aws_iam_role was deprecated since aws provider v5.68.0 as aws_iam_role_policies_exclusive was added.
hashicorp/terraform-provider-aws#39203
https://github.com/hashicorp/terraform-provider-aws/releases/tag/v5.68.0

Breaking Changes

No.
This change doesn't remove existing inline policies in migration process. I checked using TF_LOG=debug and there was no aws api call to remove existing inline policies.

How Has This Been Tested?

• I have updated at least one of the examples/* to demonstrate and validate my change(s)
• I have tested and validated these changes using one or more of the provided examples/* projects

• I have executed pre-commit run -a on my pull request

[kimxogus]

Sorry, my local fork was too outdated.

[github-actions]

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