chore(package): update standard-version to version 5.0.2

Closes #336

Author: greenkeeper[bot]

package.json

@@ -63,7 +63,7 @@
     "postcss-reporter": "6.0.1",
     "postcss-selector-not": "4.0.0",
     "script-ext-html-webpack-plugin": "2.1.3",
-    "standard-version": "5.0.0",
+    "standard-version": "5.0.2",
     "stylelint": "9.10.1",
     "stylelint-config-standard": "18.2.0",
     "text-loader": "0.0.1",