Update dev dependencies.

Author: goto-bus-stop

package.json

@@ -13,7 +13,7 @@
   },
   "devDependencies": {
     "@babel/core": "^7.5.4",
-    "babel-plugin-minify-mangle-names": "^0.4.3",
+    "babel-plugin-minify-mangle-names": "^0.5.0",
     "dedent": "^0.7.0",
     "standard": "^13.0.0",
     "tap-spec": "^5.0.0",