chore(package): update @types/node to version 14.0.2

Closes #15

Author: greenkeeper[bot]

package.json

@@ -70,7 +70,7 @@
     "devDependencies": {
         "@types/glob": "^7.1.1",
         "@types/mocha": "^5.2.7",
-        "@types/node": "^12.6.6",
+        "@types/node": "^14.0.2",
         "@types/simple-mock": "^0.8.1",
         "decache": "^4.5.1",
         "glob": "^7.1.4",