chore(deps): update dependency nikic/php-parser to v5 (#2004)

Author: renovate-bot

appengine/standard/symfony-framework/composer.json

@@ -4,7 +4,7 @@
     },
     "require-dev": {
         "monolog/monolog": "^2.0",
-        "nikic/php-parser": "^4.0",
+        "nikic/php-parser": "^5.0",
         "google/cloud-logging": "^1.14"
     }
 }