build(e2e): replace sass with sass-embedded

Author: meteorlxy

e2e/package.json

@@ -20,8 +20,8 @@
     "@vuepress-e2e/style-exports": "file:./modules/style-exports",
     "@vuepress/bundler-vite": "workspace:*",
     "@vuepress/bundler-webpack": "workspace:*",
-    "sass": "^1.77.8",
-    "sass-loader": "^14.2.1",
+    "sass-embedded": "^1.77.8",
+    "sass-loader": "^15.0.0",
     "vue": "^3.4.32",
     "vuepress": "workspace:*"
   },