Merge pull request #743 from opensheetmusicdisplay/greenkeeper/@types/node-14.0.0

Update @types/node to the latest version 🚀

package.json

@@ -71,7 +71,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.11",
     "@types/mocha": "^7.0.2",
-    "@types/node": "^13.13.5",
+    "@types/node": "^14.0.0",
     "canvas": "^2.6.1",
     "chai": "^4.1.0",
     "clean-webpack-plugin": "^3.0.0",