fix(deps): update dependency firebase-functions to v5 (#2223)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

examples/google-cloud-functions/package.json

@@ -17,7 +17,7 @@
     "@envelop/core": "workspace:^",
     "@graphql-tools/schema": "10.0.4",
     "firebase-admin": "12.0.0",
-    "firebase-functions": "4.8.1",
+    "firebase-functions": "5.0.1",
     "graphql": "16.8.1",
     "graphql-helix": "1.13.0"
   },