fix(semantic-release): update to version 15.3.0 (#39)

Author: greenkeeper[bot]

package.json

@@ -85,7 +85,7 @@
     "minami": "1.2.3",
     "nsp": "^3.2.1",
     "prettier": "1.12.1",
-    "semantic-release": "15.1.11",
+    "semantic-release": "15.3.0",
     "standard-markdown": "4.0.2",
     "standard-version": "4.3.0"
   },