add min_cpu_platform to google_container_cluster.cluster_autoscaling.auto_provisioning_defaults

[danawillow]

Fixes hashicorp/terraform-provider-google#5947

Release Note Template for Downstream PRs (will be copied)

* container: added `min_cpu_platform` to google_container_cluster.cluster_autoscaling.auto_provisioning_defaults [beta-only]

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 2 files changed, 9 insertions(+), 2 deletions(-))
Terraform Beta: Diff ( 3 files changed, 84 insertions(+), 2 deletions(-))

[danawillow]

Note: do not submit or test until b/154174834 is resolved.

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 2 files changed, 9 insertions(+), 2 deletions(-))
Terraform Beta: Diff ( 3 files changed, 93 insertions(+), 2 deletions(-))

[c2thorn]

Glad the internal issue is resolved! LGTM