Add missing dependency

We use it in one of our classes, that we should be able to statically
analyze or test.

Author: greg0ire

composer.json

@@ -58,6 +58,7 @@
         "symfony/property-info": "^5.4 || ^6.0 || ^7.0",
         "symfony/proxy-manager-bridge": "^5.4 || ^6.0 || ^7.0",
         "symfony/security-bundle": "^5.4 || ^6.0 || ^7.0",
+        "symfony/stopwatch": "^5.4 || ^6.0 || ^7.0",
         "symfony/string": "^5.4 || ^6.0 || ^7.0",
         "symfony/twig-bridge": "^5.4 || ^6.0 || ^7.0",
         "symfony/validator": "^5.4 || ^6.0 || ^7.0",