Fixed process of the last page by the 'page' pager type.

src/Plugin/migrate_plus/data_parser/Json.php

@@ -213,7 +213,7 @@ class Json extends DataParserPluginBase implements ContainerFactoryPluginInterfa
 
           // Parse the url and replace the page param value and rebuild the url.
           $path = UrlHelper::parse($url);
-          for ($page = $selector_data + 1; $page < $max; ++$page) {
+          for ($page = $selector_data + 1; $page <= $max; ++$page) {  
             $path['query'][$key] = $page;
             $next_urls[] = Url::fromUri($path['path'], [
               'query' => $path['query'],