chore(deps): bump terraform-aws-modules/transit-gateway/aws (#85)

Bumps [terraform-aws-modules/transit-gateway/aws](https://github.com/terraform-aws-modules/terraform-aws-transit-gateway) from 2.12.2 to 2.13.0.
- [Release notes](https://github.com/terraform-aws-modules/terraform-aws-transit-gateway/releases)
- [Changelog](https://github.com/terraform-aws-modules/terraform-aws-transit-gateway/blob/master/CHANGELOG.md)
- [Commits](terraform-aws-modules/terraform-aws-transit-gateway@v2.12.2...v2.13.0)

---
updated-dependencies:
- dependency-name: terraform-aws-modules/transit-gateway/aws
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

modules/trusted/transit.tf

@@ -2,7 +2,7 @@
 ## Provision the transit gateway for this region
 module "tgw" {
   source  = "terraform-aws-modules/transit-gateway/aws"
-  version = "2.12.2"
+  version = "2.13.0"
 
   name                                   = var.name
   amazon_side_asn                        = var.amazon_side_asn