Update terraform-aws-modules/ec2-instance/aws requirement

Updates the requirements on [terraform-aws-modules/ec2-instance/aws](https://github.com/terraform-aws-modules/terraform-aws-ec2-instance) to permit the latest version.
- [Release notes](https://github.com/terraform-aws-modules/terraform-aws-ec2-instance/releases)
- [Changelog](https://github.com/terraform-aws-modules/terraform-aws-ec2-instance/blob/master/CHANGELOG.md)
- [Commits](terraform-aws-modules/terraform-aws-ec2-instance@v5.6.0...v5.6.1)

---
updated-dependencies:
- dependency-name: terraform-aws-modules/ec2-instance/aws
  dependency-type: direct:production
...

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

terraform/environments/data-platform-apps-and-tools/powerbi-gateway-server.tf

@@ -13,7 +13,7 @@ data "aws_ami" "windows_server_2022" {
 }
 module "powerbi_gateway" {
   source  = "terraform-aws-modules/ec2-instance/aws"
-  version = "v5.6.0"
+  version = "5.6.1"
 
   name = local.environment_configuration.powerbi_gateway_ec2.instance_name
   # ami                         = data.aws_ami.windows_server_2022.id