minor #16642 [Security] Add missing signature_properties config (ZHB)

This PR was merged into the 5.4 branch.

Discussion
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[Security] Add missing signature_properties config

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Commits
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5c488c8 Add missing signature_properties config

Author: javiereguiluz

security/login_link.rst

@@ -61,7 +61,9 @@ under the firewall. You must configure a ``check_route`` and
 
             <config>
                 <firewall name="main">
-                    <login-link check-route="login_check"/>
+                    <login-link check-route="login_check">
+                        <signature-property>id</signature-property>
+                    </login-link>
                 </firewall>
             </config>
         </srv:container>
@@ -75,6 +77,7 @@ under the firewall. You must configure a ``check_route`` and
             $security->firewall('main')
                 ->loginLink()
                     ->checkRoute('login_check')
+                    ->signatureProperties(['id'])
             ;
         };