Unable to use the GCP reference architecture

[laurentgrangeau]

When I try to deploy the reference architecture on GCP, the terraform CLI failed with the following error :
The provider hashicorp/google-beta does not support resource type "google_privateca_certificate_authority_iam_policy".

It seems forcing the provider to the 3.70.0 version fixes the issue.

[malnick]

Thanks for raising this @laurentgrangeau . Would you be willing to post a PR with the upgraded provider version? I'd be happy to merge that in.