Apply suggestions from code review

Author: OskarStark

src/agent/src/Bridge/Brave/.github/close-pull-request.yml

@@ -17,4 +17,4 @@ jobs:
           https://github.com/symfony/ai
 
           This repository is what we call a "subtree split": a read-only subset of that main repository.
-          We're looking forward to your PR there!
+          We're looking forward to your PR there!

src/agent/src/Bridge/Brave/phpunit.xml.dist

@@ -30,7 +30,4 @@
         </exclude>
     </source>
 
-    <extensions>
-        <bootstrap class="Symfony\Bridge\PhpUnit\SymfonyExtension" />
-    </extensions>
-</phpunit>
+</phpunit>