Update dependency graphql to v14.7.0

Author: renovate-bot

src/server/package.json

@@ -19,7 +19,7 @@
  "classnames": "2.2.6",
  "express": "4.17.1",
  "express-http-proxy": "1.6.0",
- "graphql": "14.6.0",
+ "graphql": "14.7.0",
  "graphql-subscriptions": "1.1.0",
  "graphql-tools": "4.0.8",
  "lodash": "4.17.19",