feat: upgrade graphql from 15.0.0 to 16.8.1

Snyk has created this PR to upgrade graphql from 15.0.0 to 16.8.1.

See this package in npm:
https://www.npmjs.com/package/graphql

See this project in Snyk:
https://app.snyk.io/org/gregbrimble/project/c4e74521-a0a6-49d6-ad5f-3b4a62ff6cba?utm_source=github&utm_medium=referral&page=upgrade-pr

packages/client/package.json

@@ -5,7 +5,7 @@
   "dependencies": {
     "@apollo/client": "3.0.0-beta.44",
     "@monaco-editor/react": "3.3.0",
-    "graphql": "15.0.0",
+    "graphql": "16.8.1",
     "lodash": "4.17.15",
     "md5": "2.2.1",
     "moment": "2.24.0",