provider/google: bump container cluster version in tests.
provider/google: bump container cluster version in tests.

The version we were using has been deprecated and is no longer
available, making the withVersion test no longer pass. I've bumped it to
the latest available version.

hashicorp/terraform-provider-google-beta,selmanj/terraform-provider-google,drebes/terraform-provider-google,drebes/terraform-provider-google,ubschmidt2/terraform-provider-google,hashicorp/terraform-provider-google,rosbo/terraform-provider-google,hashicorp/terraform-provider-google-beta,terraform-providers/terraform-provider-google,selmanj/terraform-provider-google,hashicorp/terraform-provider-google-beta,nickithewatt/terraform-provider-google,rosbo/terraform-provider-google,nickithewatt/terraform-provider-google,ubschmidt2/terraform-provider-google,hashicorp/terraform-provider-google,rosbo/terraform-provider-google,selmanj/terraform-provider-google,ubschmidt2/terraform-provider-google,ubschmidt2/terraform-provider-google,terraform-providers/terraform-provider-google,terraform-providers/terraform-provider-google,drebes/terraform-provider-google,drebes/terraform-provider-google,nickithewatt/terraform-provider-google,hashicorp/terraform-provider-google,hashicorp/terraform-provider-google-beta,rosbo/terraform-provider-google,terraform-providers/terraform-provider-google,terraform-providers/terraform-provider-google,hashicorp/terraform-provider-google