build(deps-dev): bump sass from 1.77.5 to 1.77.6

Bumps [sass](https://github.com/sass/dart-sass) from 1.77.5 to 1.77.6.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](sass/dart-sass@1.77.5...1.77.6)

---
updated-dependencies:
- dependency-name: sass
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -12,7 +12,7 @@
     "prettier": "^3.3.2"
   },
   "devDependencies": {
-    "sass": "^1.77.5",
+    "sass": "^1.77.6",
     "vitepress": "^1.2.3"
   }
 }