chore(deps): update dependency typescript to v2.7.1

Author: renovate-bot

package.json

@@ -50,7 +50,7 @@
     "nyc": "11.4.1",
     "semantic-release": "12.1.0",
     "ts-node": "4.1.0",
-    "typescript": "2.6.2"
+    "typescript": "2.7.1"
   },
   "repository": {
     "type": "git",

yarn.lock

@@ -2638,9 +2638,9 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
-typescript@2.6.2:
-  version "2.6.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.6.2.tgz#3c5b6fd7f6de0914269027f03c0946758f7673a4"
+typescript@2.7.1:
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.7.1.tgz#bb3682c2c791ac90e7c6210b26478a8da085c359"
 
 uglify-js@^2.6:
   version "2.8.29"