chore(deps-dev): Update sass requirement from ^1.77.5 to ^1.77.6

Updates the requirements on [sass](https://github.com/sass/dart-sass) to permit the latest version.
- [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
...

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

package.json

@@ -56,7 +56,7 @@
     "is-ci": "^3.0.1",
     "lint-staged": "^15.2.7",
     "prettier": "^3.3.2",
-    "sass": "^1.77.5",
+    "sass": "^1.77.6",
     "shipjs": "^0.26.3",
     "stylelint": "16.6.1",
     "stylelint-config-recommended-vue": "^1.5.0",