chore(deps): update symfony packages to v6

Author: renovate[bot]

composer.json

@@ -47,8 +47,8 @@
     "symplify/easy-coding-standard": "10.0.2",
     "doctrine/cache": "^1.6 || ^2.0",
     "monolog/monolog": "^1.12 || ^2.0",
-    "symfony/yaml": "^4.0 || ^3.4.38 || ^5.0",
-    "symfony/stopwatch": "^4.0 || ^3.4.38 || ^5.0",
+    "symfony/yaml": "^6.0",
+    "symfony/stopwatch": "^6.0",
     "cache/adapter-common": "^1.0",
     "cache/apcu-adapter": "^1.0",
     "cache/array-adapter": "^1.0",