minor symfony#20433 [HttpFoundation] Do not use named parameters in example (MrYamous)

This PR was squashed before being merged into the 7.2 branch.

Discussion
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[HttpFoundation] Do not use named parameters in example

Noticed from [blog article ](https://symfony.com/blog/new-in-symfony-7-2-misc-improvements-part-2#better-ip-address-anonymization)

The example in the blog seems to me to be the right one, parameters aren't actually implemented so using named paramets is not possible yet

Commits
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ec2743d [HttpFoundation] Do not use named parameters in example

Author: javiereguiluz

components/http_foundation.rst

@@ -367,11 +367,13 @@ of the ``anonymize()`` method to specify the number of bytes that should be
 anonymized depending on the IP address format::
 
     $ipv4 = '123.234.235.236';
-    $anonymousIpv4 = IpUtils::anonymize($ipv4, v4Bytes: 3);
+    $anonymousIpv4 = IpUtils::anonymize($ipv4, 3);
     // $anonymousIpv4 = '123.0.0.0'
 
     $ipv6 = '2a01:198:603:10:396e:4789:8e99:890f';
-    $anonymousIpv6 = IpUtils::anonymize($ipv6, v6Bytes: 10);
+    // (you must define the second argument (bytes to anonymize in IPv4 addresses)
+    // even when you are only anonymizing IPv6 addresses)
+    $anonymousIpv6 = IpUtils::anonymize($ipv6, 3, 10);
     // $anonymousIpv6 = '2a01:198:603::'
 
 .. versionadded:: 7.2