fix: Add Name tag for EKS cloudwatch log group

[visokoo]

Description

Add additional Name tag to the cloudwatch log group resource.

Motivation and Context

In addition to the name of the log group itself, we wanted to add the log group name tag as well for our own cost reporting.

How Has This Been Tested?

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

Ran this change locally against my existing EKS cluster. Here's an example of the plan below:

  # module.eks.aws_cloudwatch_log_group.this[0] will be updated in-place
  ~ resource "aws_cloudwatch_log_group" "this" {
        id                = "/aws/eks/awesome_cluster/cluster"
        name              = "/aws/eks/awesome_cluster/cluster"
      ~ tags              = {
          + "Name" = "/aws/eks/awesome_cluster/cluster"
        }
      ~ tags_all          = {
          + "Name"             = "/aws/eks/awesome_cluster/cluster"
            # (5 unchanged elements hidden)
        }
        # (3 unchanged attributes hidden)
    }

[antonbabenko]

This PR is included in version 19.10.2 🎉

[github-actions]

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