minor #18410 [Security] Update security.rst (MaxiCom)

This PR was submitted for the 6.3 branch but it was merged into the 6.2 branch instead.

Discussion
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[Security] Update security.rst

Typo!

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Commits
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fa355fd Update security.rst

Author: javiereguiluz

security.rst

@@ -1819,7 +1819,7 @@ You can logout user programmatically using the ``logout()`` method of the
         }
     }
 
-The user will be logout from the firewall of the request. If the request is
+The user will be logged out from the firewall of the request. If the request is
 not behind a firewall a ``\LogicException`` will be thrown.
 
 Customizing Logout