Bump hashicorp/google from 5.27.0 to 5.31.1 in /gcp

Bumps [hashicorp/google](https://github.com/hashicorp/terraform-provider-google) from 5.27.0 to 5.31.1.
- [Release notes](https://github.com/hashicorp/terraform-provider-google/releases)
- [Changelog](https://github.com/hashicorp/terraform-provider-google/blob/v5.31.1/CHANGELOG.md)
- [Commits](hashicorp/terraform-provider-google@v5.27.0...v5.31.1)

---
updated-dependencies:
- dependency-name: hashicorp/google
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gcp/versions.tf

@@ -3,7 +3,7 @@ terraform {
   required_providers {
     google = {
       source  = "hashicorp/google"
-      version = "~> 5.27.0"
+      version = "~> 5.31.1"
     }
     google-beta = {
       source  = "hashicorp/google-beta"