fix(deps): update dependency mercurius to v16.4.0

Author: renovate[bot]

sample/33-graphql-mercurius/package.json

@@ -27,7 +27,7 @@
     "class-transformer": "0.5.1",
     "class-validator": "0.14.2",
     "graphql": "16.10.0",
-    "mercurius": "16.3.0",
+    "mercurius": "16.4.0",
     "reflect-metadata": "0.2.2",
     "rxjs": "7.8.2"
   },