chore(package): update @types/node to version 14.0.4

Closes #19

Author: greenkeeper[bot]

package.json

@@ -34,7 +34,7 @@
     "@commitlint/config-angular": "^8.0.0",
     "@nrfcloud/tslint-config": "^3.7.0",
     "@types/jest": "^24.0.0",
-    "@types/node": "^12.0.2",
+    "@types/node": "^14.0.4",
     "aws-sdk": "^2.346.0",
     "husky": "^3.0.1",
     "jest": "^23.6.0",