chore(sass): update deps

Author: Guillaume Chau

packages/vue-sass/package.js

@@ -9,13 +9,13 @@ Package.describe({
 Package.registerBuildPlugin({
   name: 'vue-component-sass',
   use: [
-    'ecmascript@0.11.1',
+    'ecmascript@0.12.7',
   ],
   sources: [
     'vue-sass.js',
   ],
   npmDependencies: {
-    'node-sass': '4.9.3',
+    'node-sass': '4.12.0',
     'meteor-project-path': '0.0.3',
   },
 })