Build(deps-dev): Bump sass from 1.77.6 to 1.77.7 (#27809)

Bumps [sass](https://github.com/sass/dart-sass) from 1.77.6 to 1.77.7.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](https://github.com/sass/dart-sass/compare/1.77.6...1.77.7)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

app/assets/javascripts/discourse/package.json

@@ -109,7 +109,7 @@
     "pretender": "^3.4.7",
     "qunit": "^2.21.0",
     "qunit-dom": "^3.2.0",
-    "sass": "^1.77.6",
+    "sass": "^1.77.7",
     "select-kit": "1.0.0",
     "sinon": "^18.0.0",
     "source-map": "^0.7.4",