chore(deps): update dependency typescript to v3.1.2 (#476)

Author: renovate[bot]

package.json

@@ -63,7 +63,7 @@
     "semantic-release": "15.9.17",
     "tslint": "5.11.0",
     "tslint-config-prettier": "1.15.0",
-    "typescript": "3.1.1"
+    "typescript": "3.1.2"
   },
   "keywords": [
     "behavior-smooth",

yarn.lock

@@ -6757,10 +6757,10 @@ typescript-compiler@^1.4.1-2:
   resolved "https://registry.yarnpkg.com/typescript-compiler/-/typescript-compiler-1.4.1-2.tgz#ba4f7db22d91534a1929d90009dce161eb72fd3f"
   integrity sha1-uk99si2RU0oZKdkACdzhYety/T8=
 
-[email protected].1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.1.1.tgz#3362ba9dd1e482ebb2355b02dfe8bcd19a2c7c96"
-  integrity sha512-Veu0w4dTc/9wlWNf2jeRInNodKlcdLgemvPsrNpfu5Pq39sgfFjvIIgTsvUHCoLBnMhPoUA+tFxsXjU6VexVRQ==
+[email protected].2:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.1.2.tgz#c03a5d16f30bb60ad8bb6fe8e7cb212eedeec950"
+  integrity sha512-gOoGJWbNnFAfP9FlrSV63LYD5DJqYJHG5ky1kOXSl3pCImn4rqWy/flyq1BRd4iChQsoCqjbQaqtmXO4yCVPCA==
 
 typescript@~2.4.2:
   version "2.4.2"