Added in Region for AWS aws_role_to_assume on project config in digger.yml

[ben-of-codecraft]

This closes #1469

Adds a new project option for AWS users under aws_role_to_assume in digger.yml. See the issue for more details.

It will default to "us-east-1" and here is an example configuration:

    aws_role_to_assume:
      region: "us-west-2"
      state: "arn:aws:iam::xxx:role/xxx-oidc-role"
      command: "arn:aws:iam::xxx:role/xxx-oidc-role"
workflows:

[ben-of-codecraft]

@motatoes changed over to the language you recommended and fixed merge conflicts (you guys are making changes fast)

[motatoes]

@motatoes changed over to the language you recommended and fixed merge conflicts (you guys are making changes fast)

@ben-of-codecraft thanks! we sure do