Revert "composer package update"

This reverts commit e979959219.

vendor/guzzlehttp/guzzle/src/RequestOptions.php

@@ -22,7 +22,7 @@ final class RequestOptions
      * - strict: (bool, default=false) Set to true to use strict redirects
      *   meaning redirect POST requests with POST requests vs. doing what most
      *   browsers do which is redirect POST requests with GET requests
-     * - referer: (bool, default=false) Set to true to enable the Referer
+     * - referer: (bool, default=true) Set to false to disable the Referer
      *   header.
      * - protocols: (array, default=['http', 'https']) Allowed redirect
      *   protocols.
@@ -132,14 +132,6 @@ final class RequestOptions
      */
     const HTTP_ERRORS = 'http_errors';
 
-    /**
-     * idn: (bool|int, default=true) A combination of IDNA_* constants for
-     * idn_to_ascii() PHP's function (see "options" parameter). Set to false to
-     * disable IDN support completely, or to true to use the default
-     * configuration (IDNA_DEFAULT constant).
-     */
-    const IDN_CONVERSION = 'idn_conversion';
-
     /**
      * json: (mixed) Adds JSON data to a request. The provided value is JSON
      * encoded and a Content-Type header of application/json will be added to