Fix TestAccContainerCluster_misc, add alpha cluster test (#5418)
Fix TestAccContainerCluster_misc, add alpha cluster test (#5418)

Signed-off-by: Modular Magician <86ce7da8ad74b1c583667a2bebd347455fa06219@google.com>

Co-authored-by: emily <488bcce88b58cb22f7664ad7cb1103699d030ad1@google.com>

terraform-providers/terraform-provider-google,hashicorp/terraform-provider-google,terraform-providers/terraform-provider-google,hashicorp/terraform-provider-google,terraform-providers/terraform-provider-google,hashicorp/terraform-provider-google,terraform-providers/terraform-provider-google,terraform-providers/terraform-provider-google,hashicorp/terraform-provider-google