Bump hashicorp/google-beta from 6.2.0 to 6.4.0

Bumps [hashicorp/google-beta](https://github.com/hashicorp/terraform-provider-google-beta) from 6.2.0 to 6.4.0.
- [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@v6.2.0...v6.4.0)

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

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