fix: use correct package name for dart sass

Author: haoqunjiang

packages/@vue/cli-service/generator/index.js

@@ -36,7 +36,7 @@ module.exports = (api, options) => {
 
   if (options.cssPreprocessor) {
     const deps = {
-      // TODO: remove 'sass' option in v4
+      // TODO: remove 'sass' option in v4 or rename 'dart-sass' to 'sass'
       sass: {
         'node-sass': '^4.9.0',
         'sass-loader': '^7.1.0'
@@ -47,7 +47,7 @@ module.exports = (api, options) => {
       },
       'dart-sass': {
         fibers: '^3.1.1',
-        'dart-sass': '^1.16.0',
+        'sass': '^1.16.0',
         'sass-loader': '^7.1.0'
       },
       less: {