chore(deps): update dependency @types/node to v14 (#457)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@types/node](https://togithub.com/DefinitelyTyped/DefinitelyTyped) | [`^10.9.4` -> `^14.0.0`](https://renovatebot.com/diffs/npm/@types%2fnode/10.17.60/14.17.0) | [![age](https://badges.renovateapi.com/packages/npm/@types%2fnode/14.17.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/npm/@types%2fnode/14.17.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/npm/@types%2fnode/14.17.0/compatibility-slim/10.17.60)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/npm/@types%2fnode/14.17.0/confidence-slim/10.17.60)](https://docs.renovatebot.com/merge-confidence/) |

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Author: renovate-bot

packages/google-cloud-dns/package.json

@@ -57,7 +57,7 @@
   "devDependencies": {
     "@types/lodash.groupby": "^4.6.4",
     "@types/mocha": "^8.0.0",
-    "@types/node": "^10.9.4",
+    "@types/node": "^14.0.0",
     "@types/proxyquire": "^1.3.28",
     "@types/request": "^2.48.1",
     "@types/tmp": "0.2.0",