minor #6569 [Reference] change namespace to point to new class (xabbuh)

This PR was merged into the 3.1 branch.

Discussion
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[Reference] change namespace to point to new class

see symfony/symfony#17589 and #6568 (comment)

Commits
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10cf8d6 change namespace to point to new class

reference/events.rst

@@ -77,7 +77,7 @@ This is the built-in Symfony listener related to this event:
 ==============================================================================  ========
 Listener Class Name                                                             Priority
 ==============================================================================  ========
-:class:`Symfony\\Component\\HttpKernel\\DataCollector\\RequestDataCollector`    0
+:class:`Symfony\\Bundle\\FrameworkBundle\\DataCollector\\RequestDataCollector`  0
 ==============================================================================  ========
 
 ``kernel.view``