build: sass 固定版本 1.77.8

防止 1.88 版本报错， close pulls #179

package.json

@@ -149,7 +149,7 @@
     "postcss-html": "^1.7.0",
     "postcss-scss": "^4.0.9",
     "rollup-plugin-visualizer": "^5.12.0",
-    "sass": "^1.77.8",
+    "sass": "1.77.8",
     "stylelint": "^16.11.0",
     "stylelint-config-html": "^1.1.0",
     "stylelint-config-recess-order": "^4.6.0",