Allow vertical pod autoscaling to be computed, auto_pilot can enable it

[ScottSuarez]

closes hashicorp/terraform-provider-google#11133

Release Note Template for Downstream PRs (will be copied)

container: allowed `vertical_pod_autoscaling` to be computed as `enable_autopilot` can mutate it

[modular-magician]

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

Diff report:

Terraform GA: Diff ( 1 file changed, 1 insertion(+))
Terraform Beta: Diff ( 1 file changed, 1 insertion(+))
TF Validator: Diff ( 2 files changed, 3 insertions(+), 3 deletions(-))

[modular-magician]

I have triggered VCR tests in RECORDING mode for the following tests that failed during VCR: TestAccDatasourceGoogleServiceNetworkingPeeredDnsDomain_basic|TestAccApigeeEnvironmentIamBindingGenerated|TestAccApigeeEnvironmentIamMemberGenerated|TestAccApigeeEnvironmentIamPolicyGenerated|TestAccCloudbuildWorkerPool_basic|TestAccContainerCluster_withAuthenticatorGroupsConfig|TestAccEventarcTrigger_BasicHandWritten You can view the result here: https://ci-oss.hashicorp.engineering/viewQueued.html?itemId=261066