Bump sass-loader from 14.2.1 to 16.0.5 in /extension

Bumps [sass-loader](https://github.com/webpack-contrib/sass-loader) from 14.2.1 to 16.0.5.
- [Release notes](https://github.com/webpack-contrib/sass-loader/releases)
- [Changelog](https://github.com/webpack-contrib/sass-loader/blob/master/CHANGELOG.md)
- [Commits](webpack/sass-loader@v14.2.1...v16.0.5)

---
updated-dependencies:
- dependency-name: sass-loader
  dependency-version: 16.0.5
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

extension/package-lock.json

@@ -54,7 +54,7 @@
         "prettier": "^3.3.3",
         "rimraf": "^6.0.1",
         "sass": "^1.89.2",
-        "sass-loader": "^14.2.1",
+        "sass-loader": "^16.0.5",
         "style-loader": "^4.0.0",
         "tfx-cli": "^0.21.1",
         "ts-jest": "^29.4.0",