fix(package): update @types/riot to version 2.6.2

https://greenkeeper.io/

package.json

@@ -57,7 +57,7 @@
     "@types/redis": "0.12.36",
     "@types/request": "0.0.41",
     "@types/rimraf": "0.0.28",
-    "@types/riot": "2.6.1",
+    "@types/riot": "2.6.2",
     "@types/serve-favicon": "2.2.28",
     "@types/uuid": "2.0.29",
     "@types/webpack": "2.2.11",