chore(package): update @types/node to version 10.12.6

Author: greenkeeper[bot]

package.json

@@ -75,7 +75,7 @@
     "@types/jasmine": "~2.8.9",
     "@types/jasminewd2": "~2.0.5",
     "@types/mocha": "^5.2.5",
-    "@types/node": "~10.12.2",
+    "@types/node": "~10.12.6",
     "@types/webdriverio": "^4.13.0",
     "chai": "^4.2.0",
     "chai-as-promised": "^7.1.1",