Bump terraform-google-modules/github-actions-runners/google in /dev

Bumps [terraform-google-modules/github-actions-runners/google](https://github.com/terraform-google-modules/terraform-google-github-actions-runners) from 3.1.1 to 3.1.2.
- [Release notes](https://github.com/terraform-google-modules/terraform-google-github-actions-runners/releases)
- [Changelog](https://github.com/terraform-google-modules/terraform-google-github-actions-runners/blob/master/CHANGELOG.md)
- [Commits](terraform-google-modules/terraform-google-github-actions-runners@v3.1.1...v3.1.2)

---
updated-dependencies:
- dependency-name: terraform-google-modules/github-actions-runners/google
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

dev/iam/main.tf

@@ -35,7 +35,7 @@ resource "google_project_iam_member" "iam_workload_identity_user" {
 
 module "gh_oidc" {
   source  = "terraform-google-modules/github-actions-runners/google//modules/gh-oidc"
-  version = "3.1.1"
+  version = "3.1.2"
 
   project_id       = var.project_id
   pool_id          = var.pool_id