Documentation: enabled_metrics -> enable_metrics in documentation/terraform site

[Neutrollized]

Fix documentation website for container_cluster - advanced_datapath_observability_config setting enabled_metrics should be enable_metrics as per resource schema here.

Terraform would also complain with the following message:

An argument named "enabled_metrics" is not expected here. Did you mean "enable_metrics"?

Issue is resolved when argument is changed to enable_metrics instead. Provider is working fine, documentation just needs to be updated to reflect the actual name of the arg.

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Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))
Terraform Beta: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))