bug symfony#61062 [Brevo Mailer] Webhook IP Addresses have changed (richardhj)

This PR was merged into the 6.4 branch.

Discussion
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[Brevo Mailer] Webhook IP Addresses have changed

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        |
| License       | MIT

So first I recognized multiple `RejectWebhookExceptions`. Then I checked my access logs and realized that webhook from Brevo can also come from the '172.246.240.1/20' IP range.

This is also documented here: https://help.brevo.com/hc/en-us/articles/15127404548498-Brevo-IP-ranges-List-of-publicly-exposed-services

This new IP range must have been added later this year, it hasn't been there in January, for instance: https://web.archive.org/web/20250125161029/https://help.brevo.com/hc/en-us/articles/15127404548498-Brevo-IP-ranges-List-of-publicly-exposed-services

So this PR adds the new IP range for ingress webhook validation.

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Commits
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0cf7545 Update BrevoRequestParser.php

Author: fabpot

src/Symfony/Component/Mailer/Bridge/Brevo/Webhook/BrevoRequestParser.php

@@ -37,7 +37,7 @@ protected function getRequestMatcher(): RequestMatcherInterface
             new IsJsonRequestMatcher(),
             // https://developers.brevo.com/docs/how-to-use-webhooks#securing-your-webhooks
             // localhost is added for testing
-            new IpsRequestMatcher(['185.107.232.1/24', '1.179.112.1/20', '127.0.0.1']),
+            new IpsRequestMatcher(['185.107.232.1/24', '1.179.112.1/20', '172.246.240.1/20', '127.0.0.1']),
         ]);
     }