0.7.0: Also support aws provider 3+ (#17)

## what
Set to use the latest version of dependencies and set to accept higher aws provider versions (3+)

## why
the latest aws provider now is 3.14.1, for this module to stay relevant it need to start support 3+.
There might be a point in creating 2 separate branches/tracks in the future since some 3+ things are not compatible with some 2+ things and vice versa.. I do not now if this module includes any issues like that, but the included "complete" test is ok with using the latest 3.14.1 provider at least.

## references
Direct links to the updated modules if curious what has changed in the versions (I didnt analyze just ran test and it worked
https://github.com/cloudposse/terraform-aws-vpc
https://github.com/cloudposse/terraform-aws-dynamic-subnets
https://github.com/cloudposse/terraform-aws-route53-cluster-hostname

Not for these particular changes Im doing a PR for now, but for reference what has changed between 2 and 3.
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/guides/version-3-upgrade