fix: move karpenter ECR auth token and provider out of the module

[oleksiimorozenko]

[Pull request title](fix: move karpenter ECR auth token and provider out of the module)

Description

Defining provider and related resources (data source) in the module can break even plan if the user running Terraform is assuming role (i.e. doesn't have any permissions assigned to itself but assume role) even if Karpenter module is disabled

The plan fails with Error: getting ECR Public authorization token: AccessDeniedException: User: arn:aws:iam::<account-id>:user/username is not authorized to perform: ecr-public:GetAuthorizationToken on resource: * because no identity-based policy allows the ecr-public:GetAuthorizationToken action in this case

It's better instead to define the provider in the root module as the dependent module's example shows
This PR solves the problem when the provider block looks like this:

provider "aws" {
  region = var.aws_region
  assume_role {
    session_name = "terraform-role"
    role_arn     = "arn:aws:iam::<account-id>:role/rolename"
  }
}

Checklist

• CI tests are passing
• README.md has been updated after any changes to variables and outputs. See https://github.com/particuleio/terraform-kubernetes-addons/#doc-generation

[oleksiimorozenko]

@ArchiFleKs @rguichard any chance it will be approved?

[rguichard]

@ArchiFleKs @rguichard any chance it will be approved?

Don't worry we will review it! Thx a lot for your contribution!

[ArchiFleKs]

@oleksiimorozenko could you rebase please

[github-actions]

🎉 This PR is included in version 14.1.0 🎉

The release is available on GitHub release

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