add subnet usedefault public dns

[Tiboau]

Description

Add use_default_public_dns_resolver in subnetv2

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Improvement (improve existing resource(s) or datasource(s))
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Test Configuration:

• Terraform version: terraform version: Terraform vx.y.z
• Existing HCL configuration you used:

resource "ovh_cloud_project_network_private_subnet_v2" "subnet" {
  network_id        = "aaa-vvv-bbb-ccc"
  name              = "my_private_subnet"
  region            = "BHS5"
  dns_nameservers   = ["1.1.1.1"]
  cidr              = "192.168.168.0/24"
  dhcp              = true
  enable_gateway_ip = true
  use_default_public_dns_resolver = false
}

 # ovh_cloud_project_network_private_subnet_v2.subnet will be created
  + resource "ovh_cloud_project_network_private_subnet_v2" "subnet" {
      + cidr                            = "192.168.168.0/24"
      + dhcp                            = true
      + dns_nameservers                 = [
          + "1.1.1.1",
        ]
      + enable_gateway_ip               = true
      + gateway_ip                      = (known after apply)
      + id                              = (known after apply)
      + name                            = "my_private_subnet"
      + network_id                      = "aaa-vvv-bbb-ccc"
      + region                          = "BHS5"
      + service_name                    = "xxx"
      + use_default_public_dns_resolver = false
    }

[amstuta]

will panic if *bool is nil

[Tiboau]

api can receive nil or boolean

[amstuta]

yes, but it doesn't change the fact that *p.UseDefaultPublicDNSResolver can panic if p.UseDefaultPublicDNSResolver is nil