chore(deps): update dependency @types/node to v11.15.11

Author: renovate-bot

package.json

@@ -28,7 +28,7 @@
   "license": "MIT",
   "devDependencies": {
     "@types/jasmine": "3.5.10",
-    "@types/node": "11.15.10",
+    "@types/node": "11.15.11",
     "jasmine": "3.5.0",
     "jasmine-node": "3.0.0",
     "ts-node": "8.8.2",