chore: update @types/node to 13.13.4 (#677)

package.json

@@ -71,7 +71,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.11",
     "@types/mocha": "^7.0.2",
-    "@types/node": "^13.11.0",
+    "@types/node": "^13.13.4",
     "canvas": "^2.6.1",
     "chai": "^4.1.0",
     "clean-webpack-plugin": "^3.0.0",