feat(contentful-management-go): allow content type display fields to be nullable in responses

Author: cysp

internal/contentful-management-go/oas_json_gen.go

@@ -151,6 +151,9 @@ components:
             description:
               type: string
               nullable: true
+            displayField:
+              type: string
+              nullable: true
     ContentTypeRequestFields:
       type: object
       properties:

internal/contentful-management-go/oas_schemas_gen.go

@@ -138,7 +138,7 @@ func (model *ContentTypeModel) ReadFromResponse(ctx context.Context, contentType
 
 	model.Name = types.StringValue(contentType.Name)
 	model.Description = types.StringValue(contentType.Description.Or(""))
-	model.DisplayField = types.StringValue(contentType.DisplayField)
+	model.DisplayField = types.StringValue(contentType.DisplayField.Or(""))
 
 	fieldsList, fieldsListDiags := NewFieldsListFromResponse(ctx, path.Root("fields"), contentType.Fields)
 	diags.Append(fieldsListDiags...)