fix(data-source.tf): address deprecation warning

[mikedizon]

what

changes

role_arn -> assume_role.role_arn

why

addresses deprecated parameter warning

Warning: Deprecated Parameters

  with module.xxx.data.terraform_remote_state.data_source[0],
  on ../terraform-yaml-stack-config/modules/remote-state/data-source.tf line 88, in data "terraform_remote_state" "data_source":
  88: data "terraform_remote_state" "data_source" {

The following parameters have been deprecated. Replace them as follows:
  * role_arn -> assume_role.role_arn


(and 3 more similar warnings elsewhere

[kevcube]

@mikedizon hey mike, thanks for this, see #93

[kevcube]

Also if you're on cloudposse's public slack you can see some discussion here

[mikedizon]

@kevcube ah thanks, I guess i've been out of the loop on things!

[Nuru]

Fixed by #105 released in v1.8.0