Fix highest-deps job

Author: Kocal

src/LiveComponent/composer.json

@@ -48,7 +48,7 @@
         "symfony/options-resolver": "^5.4|^6.0|^7.0|^8.0",
         "symfony/phpunit-bridge": "^6.1|^7.0|^8.0",
         "symfony/security-bundle": "^5.4|^6.0|^7.0|^8.0",
-        "symfony/serializer": "^5.4|^6.0|^7.0|^8.0",
+        "symfony/serializer": "8.0.x-dev#2cb4a1e7271a460e926513b4ee377081b2c4cb00",
         "symfony/twig-bundle": "^5.4|^6.0|^7.0|^8.0",
         "symfony/uid": "^5.4|^6.0|^7.0|^8.0",
         "symfony/validator": "^5.4|^6.0|^7.0|^8.0",