chore(package): update lockfile yarn.lock

Author: greenkeeper[bot]

yarn.lock

@@ -5261,9 +5261,9 @@ [email protected]:
   version "0.2.7"
   resolved "https://registry.npmjs.org/relateurl/-/relateurl-0.2.7.tgz#54dbf377e51440aca90a4cd274600d3ff2d888a9"
 
-remap-istanbul@^0.11.1:
-  version "0.11.1"
-  resolved "https://registry.npmjs.org/remap-istanbul/-/remap-istanbul-0.11.1.tgz#4ad9a06450d3556559bef6195418e05bd4ef6d61"
+remap-istanbul@^0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/remap-istanbul/-/remap-istanbul-0.12.0.tgz#7215642017d01a8c4a51bdb41be35297ec71fc4e"
   dependencies:
     amdefine "^1.0.0"
     istanbul "0.4.5"