chore(deps): update dependency coveralls to v2.13.3 (#44)

Author: renovate[bot]

package.json

@@ -56,7 +56,7 @@
     "babel-plugin-transform-es2015-modules-commonjs": "6.24.1",
     "babel-plugin-transform-flow-strip-types": "6.22.0",
     "babel-preset-es2015": "6.24.1",
-    "coveralls": "2.13.1",
+    "coveralls": "2.13.3",
     "cross-env": "3.2.4",
     "documentation": "4.0.0-rc.1",
     "eslint": "4.19.1",

yarn.lock

@@ -1594,9 +1594,9 @@ core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
-[email protected].1:
-  version "2.13.1"
-  resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-2.13.1.tgz#d70bb9acc1835ec4f063ff9dac5423c17b11f178"
+[email protected].3:
+  version "2.13.3"
+  resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-2.13.3.tgz#9ad7c2ae527417f361e8b626483f48ee92dd2bc7"
   dependencies:
     js-yaml "3.6.1"
     lcov-parse "0.0.10"