Bump sass-loader from 13.3.3 to 14.0.0 in /mpcontribs-portal

Bumps [sass-loader](https://github.com/webpack-contrib/sass-loader) from 13.3.3 to 14.0.0.
- [Release notes](https://github.com/webpack-contrib/sass-loader/releases)
- [Changelog](https://github.com/webpack-contrib/sass-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/sass-loader@v13.3.3...v14.0.0)

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

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

mpcontribs-portal/package.json

@@ -42,7 +42,7 @@
     "plotly.js": "^2.27.0",
     "requirejs": "^2.3.6",
     "sass": "^1.69.4",
-    "sass-loader": "^13.3.2",
+    "sass-loader": "^14.0.0",
     "select2": "^4.1.0-rc.0",
     "terser-webpack-plugin": "^5.3.9",
     "typy": "^3.3.0",