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

Author: renovate-bot

package.json

@@ -21,7 +21,7 @@
     "husky": "0.14.3",
     "lint-staged": "4.2.1",
     "prettier": "1.7.0",
-    "typescript": "2.5.2",
+    "typescript": "2.8.3",
     "validate-commit-message": "3.0.1"
   },
   "dependencies": {

yarn.lock

@@ -3427,6 +3427,10 @@ typescript@2.5.2:
   version "2.5.2"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.5.2.tgz#038a95f7d9bbb420b1bf35ba31d4c5c1dd3ffe34"
 
+typescript@2.8.3:
+  version "2.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.8.3.tgz#5d817f9b6f31bb871835f4edf0089f21abe6c170"
+
 uglify-js@3.1.x:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.1.3.tgz#d61f0453b4718cab01581f3162aa90bab7520b42"