build(deps-dev): bump sass in /build/frontend-legacy

Bumps [sass](https://github.com/sass/dart-sass) from 1.94.2 to 1.95.1.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](sass/dart-sass@1.94.2...1.95.1)

---
updated-dependencies:
- dependency-name: sass
  dependency-version: 1.95.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

build/frontend-legacy/package-lock.json

@@ -126,7 +126,7 @@
     "msw": "^2.12.3",
     "raw-loader": "^4.0.2",
     "regextras": "^0.8.0",
-    "sass": "^1.94.2",
+    "sass": "^1.95.1",
     "typescript": "^5.9.2",
     "vite": "^7.2.7",
     "vitest": "^4.0.13",