chore(package): update @types/node to version 14.0.3

Closes #129

Author: greenkeeper[bot]

package.json

@@ -46,7 +46,7 @@
     "@angular/language-service": "~7.2.0",
     "@types/jasmine": "~2.8.8",
     "@types/jasminewd2": "~2.0.3",
-    "@types/node": "~8.9.4",
+    "@types/node": "~14.0.3",
     "codecov": "^3.0.4",
     "codelyzer": "~4.5.0",
     "eslint": "^5.16.0",