chore(package): update gulp-spawn-mocha to version 3.0.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -47,7 +47,7 @@
     "gulp-rename": "^1.2.2",
     "gulp-require-tasks": "^1.0.3",
     "gulp-size": "^2.1.0",
-    "gulp-spawn-mocha": "^2.2.2",
+    "gulp-spawn-mocha": "^3.0.0",
     "gulp-tag-version": "^1.3.0",
     "gulp-uglify": "^1.5.4",
     "gulp-util": "^3.0.7",