chore: update dependency graphql to v16

Author: renovate[bot]

cynic-querygen-web/js/package-lock.json

@@ -21,7 +21,7 @@
     "babel-polyfill": "^6.26.0",
     "graphiql": "^1.0.3",
     "graphiql-explorer": "^0.9.0",
-    "graphql": "^15.2.0",
+    "graphql": "^16.0.0",
     "punycode": "^2.1.1",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",