docs: fix some type.

Author: ping-yee

system/Helpers/array_helper.php

@@ -103,7 +103,7 @@ function _array_search_dot(array $indexes, array $array)
     /**
      * Returns the value of an element at a key in an array of uncertain depth.
      *
-     * @param float|int|string $key
+     * @param int|string $key
      *
      * @return array|bool|float|int|object|string|null
      */

system/Helpers/filesystem_helper.php

@@ -292,8 +292,8 @@ function get_dir_file_info(string $sourceDir, bool $topLevelOnly = true, bool $r
      * Options are: name, server_path, size, date, readable, writable, executable, fileperms
      * Returns false if the file cannot be found.
      *
-     * @param string            $file           Path to file
-     * @param array|string|null $returnedValues Array or comma separated string of information returned
+     * @param string       $file           Path to file
+     * @param array|string $returnedValues Array or comma separated string of information returned
      *
      * @return array|null
      */