chore(deps): update dependency @types/node to v14 (#387)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

package.json

@@ -49,7 +49,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.11",
     "@types/mocha": "^8.0.0",
-    "@types/node": "^10.0.3",
+    "@types/node": "^14.0.0",
     "@typescript-eslint/eslint-plugin": "^3.10.1",
     "@typescript-eslint/parser": "^3.10.1",
     "@wessberg/rollup-plugin-ts": "^1.2.28",