Merge pull request #534 from KnisterPeter/renovate/typescript-2.x

chore(deps): update dependency typescript to v2.8.3

Author: KnisterPeter

package-lock.json

@@ -62,7 +62,7 @@
     "source-map-support": "0.5.4",
     "standard-version": "4.3.0",
     "tslint": "5.9.1",
-    "typescript": "2.8.1"
+    "typescript": "2.8.3"
   },
   "dependencies": {
     "astq": "^2.0.3",