chore(package): update @types/node to version 12.12.21

Closes #7

Author: greenkeeper[bot]

package.json

@@ -33,7 +33,7 @@
     "@types/angular-mocks": "^1.7.0",
     "@types/jasmine": "^2.8.8",
     "@types/jquery": "^3.3.5",
-    "@types/node": "^10.5.8",
+    "@types/node": "^12.12.21",
     "angular": "^1.7.2",
     "angular-mocks": "^1.7.2",
     "angular-ts-decorators": "^3.7.5",