* terraform/gcp: Do not create unused subnetworks
By default terraform creates a subnetwork in each 39 regions
* terraform/gcp: Upgrade to latest google provider
... where "one of source_tags, source_ranges, or source_service_accounts must be defined"
* Fix terraform Warning
Version constraints inside provider configuration blocks are deprecated
Terraform 0.13 and earlier allowed provider version constraints inside the
provider configuration block, but that is now deprecated and will be removed
in a future version of Terraform. To silence this warning, move the provider
version constraint into the required_providers block.
* Fix terraform Warning: Quoted references are deprecated
* terraform: Update GCP Ubuntu to latest LTS
Mathieu Parent
Fredrik Liv