task info printer needs improvements

[errordeveloper]

When there are many tasks, it can become hard to read.

This becomes prominent with iamserviceaccounts, e.g.:

[ℹ]  3 sequential tasks: { delete nodegroup "ng-5b8f2f94", 2 sequential sub-tasks: { 2 sequential sub-tasks: { delete IAM role for serviceaccount "default/s3-reader", delete serviceaccount "default/s3-reader" }, delete IAM OIDC provider }, delete cluster control plane "irp-test-5-manual" [async] }

It'd look a bit better if we use multiple lines:

[ℹ]  3 sequential tasks: {
  delete nodegroup "ng-5b8f2f94", 2 sequential sub-tasks: {
    2 sequential sub-tasks: {
      delete IAM role for serviceaccount "default/s3-reader", delete serviceaccount "default/s3-reader"
    }
    delete IAM OIDC provider
  }
  delete cluster control plane "irp-test-5-manual" [async]
}

I think it help to present user this information, but still not sure what's the best way to convey it.

[github-actions]

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