connectivity_method=private no longer creates an internal postgres

[ajeffowens]

commit 651c565 changed azurerm version from 3.92 to 4.3.0

there is a new variable introduced in the postgres module: public_network_access_enabled

this variable defaults to true. So, setting the viya4-iac-azure var connectivity_method to private does not create a private postgres anymore.

So this postgres_server block:

   "postgres_servers": {
    "default": {
      "administrator_password": "***",
      "connectivity_method": "private",
      "postgresql_configurations": [
        {
          "name": "azure.extensions",
          "value": "LTREE"
        }
      ]
    }
  },

With this postgresql subnet defintion:

"postgresql": {
      "prefixes": [
        "192.168.5.0/24"
      ],
      "private_endpoint_network_policies": "Disabled",
      "private_link_service_network_policies_enabled": false,
      "service_delegations": {
        "flexpostgres": {
          "actions": [
            "Microsoft.Network/virtualNetworks/subnets/join/action"
          ],
          "name": "Microsoft.DBforPostgreSQL/flexibleServers"
        }
      },
      "service_endpoints": [
        "Microsoft.KeyVault"
      ]
    }

Now results in this error:

╷
│ Error: creating Flexible Server (Subscription: "693fe151-300d-4b8e-a478-3871749a4eb7"
│ Resource Group Name: "jotrials-csinfs3-rg"
│ Flexible Server Name: "jotrials-csinfs3-default-flexpsql"): performing Create: unexpected status 400 (400 Bad Request) with error: ConflictingPublicNetworkAccessAndVirtualNetworkConfiguration: Conflicting configuration is detected between Public Network Access and Virtual Network arguments. Public Network Access is not supported along with Virtual Network feature.
│ 
│   with module.flex_postgresql["default"].azurerm_postgresql_flexible_server.flexpsql,
│   on modules/azurerm_postgresql_flex/main.tf line 26, in resource "azurerm_postgresql_flexible_server" "flexpsql":
│   26: resource "azurerm_postgresql_flexible_server" "flexpsql" {
│