build(deps): bump clouddrove/subnet/azure

Bumps [clouddrove/subnet/azure](https://github.com/clouddrove/terraform-azure-subnet) from 1.0.2 to 1.2.1.
- [Release notes](https://github.com/clouddrove/terraform-azure-subnet/releases)
- [Changelog](https://github.com/clouddrove/terraform-azure-subnet/blob/master/CHANGELOG.md)
- [Commits](clouddrove/terraform-azure-subnet@1.0.2...1.2.1)

---
updated-dependencies:
- dependency-name: clouddrove/subnet/azure
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

_example/mysql-flexible-server-replication/main.tf

@@ -40,7 +40,7 @@ module "vnet" {
 ##-----------------------------------------------------------------------------
 module "subnet" {
   source               = "clouddrove/subnet/azure"
-  version              = "1.0.2"
+  version              = "1.2.1"
   name                 = local.name
   environment          = local.environment
   resource_group_name  = module.resource_group.resource_group_name