fix managed.dnsAuthorizations:

mmv1/products/certificatemanager/terraform.yaml

@@ -38,19 +38,12 @@ overrides: !ruby/object:Overrides::ResourceOverrides
           dns_auth_name2: "dns-auth2"
           dns_auth_subdomain2: "subdomain2"
           cert_name: "dns-cert"
-        ignore_read_extra:
-          - "managed.0.dns_authorizations"
-    examples:
       - !ruby/object:Provider::Terraform::Examples
         name: "certificate_manager_self_managed_certificate"
         primary_resource_id: "default"
         vars:
           cert_name: "self-managed-cert"
     properties:
-      managed.dnsAuthorizations: !ruby/object:Overrides::Terraform::PropertyOverride
-        # We don't support ignore_read on nested fields
-        ignore_read: true
-        custom_flatten: "templates/terraform/custom_flatten/certificate_manager_certificate_managed_dns_auth.go.erb"
       selfManaged.certificatePem: !ruby/object:Overrides::Terraform::PropertyOverride
         sensitive: true
       selfManaged.privateKeyPem: !ruby/object:Overrides::Terraform::PropertyOverride
@@ -61,6 +54,8 @@ overrides: !ruby/object:Overrides::ResourceOverrides
         ignore_read: true
       scope: !ruby/object:Overrides::Terraform::PropertyOverride
         diff_suppress_func: 'certManagerDefaultScopeDiffSuppress'
+      managed.dnsAuthorizations: !ruby/object:Overrides::Terraform::PropertyOverride
+        diff_suppress_func: 'projectNumberDiffSuppress'
     custom_code: !ruby/object:Provider::Terraform::CustomCode
       constants: templates/terraform/constants/cert_manager.erb
   CertificateMap: !ruby/object:Overrides::Terraform::ResourceOverride