remove conflicts with from authenticator_groups_config

[modular-magician]

Fixes hashicorp/terraform-provider-google#11292
https://cloud.google.com/kubernetes-engine/docs/concepts/autopilot-overview#comparison

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Release Note Template for Downstream PRs (will be copied)

container: fixed a bug where `google_container_cluster.authenticator_groups_config` could not be set in tandem with `enable_autopilot`

Derived from GoogleCloudPlatform/magic-modules#5833