minor #16050 [HttpClient] Fix example url (mabar)

This PR was merged into the 5.3 branch.

Discussion
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[HttpClient] Fix example url

https://github.com/symfony/symfony/blob/5.3/src/Symfony/Component/HttpClient/Tests/AsyncDecoratorTraitTest.php

Commits
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ea6a3e2 Fix example url

Author: javiereguiluz

http_client.rst

@@ -1646,7 +1646,7 @@ the response, replace the current request by another one or change the chunk
 passthru itself.
 
 Checking the test cases implemented in
-:class:`Symfony\\Component\\HttpClient\\Response\\Tests\\AsyncDecoratorTraitTest`
+:class:`Symfony\\Component\\HttpClient\\Tests\\AsyncDecoratorTraitTest`
 might be a good start to get various working examples for a better understanding.
 Here are the use cases that it simulates: