terraform(deps): update hashicorp/google-beta requirement from ~> 5.10 to ~> 6.47

Updates the requirements on [hashicorp/google-beta](https://github.com/hashicorp/terraform-provider-google-beta) to permit the latest version.
- [Release notes](https://github.com/hashicorp/terraform-provider-google-beta/releases)
- [Changelog](https://github.com/hashicorp/terraform-provider-google-beta/blob/main/CHANGELOG.md)
- [Commits](hashicorp/terraform-provider-google-beta@v5.10.0...v6.47.0)

---
updated-dependencies:
- dependency-name: hashicorp/google-beta
  dependency-version: 6.47.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

deployments/multi-region/terraform/main.tf

@@ -8,7 +8,7 @@ terraform {
     }
     google-beta = {
       source  = "hashicorp/google-beta"
-      version = "~> 5.10"
+      version = "~> 6.47"
     }
     kubernetes = {
       source  = "hashicorp/kubernetes"