chore(deps): Bump vpc::terraform-aws-vpc in /tests/gateway_type_endpoint

Bumps [vpc::terraform-aws-vpc](https://github.com/terraform-aws-modules/terraform-aws-vpc) from 3.11.5 to 3.12.0.
- [Release notes](https://github.com/terraform-aws-modules/terraform-aws-vpc/releases)
- [Changelog](https://github.com/terraform-aws-modules/terraform-aws-vpc/blob/master/CHANGELOG.md)
- [Commits](terraform-aws-modules/terraform-aws-vpc@v3.11.5...v3.12.0)

---
updated-dependencies:
- dependency-name: vpc::github::terraform-aws-modules/terraform-aws-vpc::v3.11.5
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

tests/gateway_type_endpoint/main.tf

@@ -6,7 +6,7 @@ resource "random_string" "this" {
 }
 
 module "vpc" {
-  source = "github.com/terraform-aws-modules/terraform-aws-vpc?ref=v3.11.5"
+  source = "github.com/terraform-aws-modules/terraform-aws-vpc?ref=v3.12.0"
 
   name                 = "tardigrade-vpc-endpoints-${random_string.this.result}"
   cidr                 = "10.0.0.0/16"