fix(deps): update dependency @google-cloud/functions-framework to v4

Author: renovate[bot]

example/package.json

@@ -20,7 +20,7 @@
     "@apollo/server": "^4.3.0",
     "@apollo/utils.withrequired": "^3.0.0",
     "@as-integrations/google-cloud-functions": "file:..",
-    "@google-cloud/functions-framework": "^3.1.3",
+    "@google-cloud/functions-framework": "^4.0.0",
     "graphql": "^16.6.0"
   },
   "devDependencies": {