minor #31184 [HttpFoundation] fix tests (nicolas-grekas)

This PR was merged into the 3.4 branch.

Discussion
----------

[HttpFoundation] fix tests

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Commits
-------

8e93ef3 [HttpFoundation] fix tests

phpunit

@@ -1,7 +1,7 @@
 #!/usr/bin/env php
 <?php
 
-// Cache-Id: https://github.com/symfony/symfony/commit/aad0c58
+// Cache-Id: https://github.com/symfony/phpunit-bridge/commit/32c5fa570117630dad45c21528b93d26bad02bc1
 
 if (!file_exists(__DIR__.'/vendor/symfony/phpunit-bridge/bin/simple-phpunit')) {
     echo "Unable to find the `simple-phpunit` script in `vendor/symfony/phpunit-bridge/bin/`.\nPlease run `composer update` before running this command.\n";

src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php

@@ -942,14 +942,15 @@ public function ianaCodesReasonPhrasesProvider()
 
         $ianaHttpStatusCodes = new \DOMDocument();
 
-        libxml_set_streams_context(stream_context_create([
+        $context = stream_context_create([
             'http' => [
                 'method' => 'GET',
                 'timeout' => 30,
+                'user_agent' => __METHOD__,
             ],
-        ]));
+        ]);
 
-        $ianaHttpStatusCodes->load('https://www.iana.org/assignments/http-status-codes/http-status-codes.xml');
+        $ianaHttpStatusCodes->loadXML(file_get_contents('https://www.iana.org/assignments/http-status-codes/http-status-codes.xml', false, $context));
         if (!$ianaHttpStatusCodes->relaxNGValidate(__DIR__.'/schema/http-status-codes.rng')) {
             self::fail('Invalid IANA\'s HTTP status code list.');
         }