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

Author: renovate-bot

package.json

@@ -40,7 +40,7 @@
     "ndjson": "^2.0.0"
   },
   "devDependencies": {
-    "@types/node": "^12.0.3",
+    "@types/node": "^14.0.0",
     "@types/tape": "^4.2.31",
     "mos": "^2.0.0-alpha.3",
     "mos-plugin-readme": "^1.0.4",