build(deps): bump less-loader from 11.1.4 to 12.2.0 in /playground

Bumps [less-loader](https://github.com/webpack-contrib/less-loader) from 11.1.4 to 12.2.0.
- [Release notes](https://github.com/webpack-contrib/less-loader/releases)
- [Changelog](https://github.com/webpack-contrib/less-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/less-loader@v11.1.4...v12.2.0)

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

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

playground/package.json

@@ -34,7 +34,7 @@
     "formik-antd": "^2.0.4",
     "js-yaml": "^4.1.0",
     "less": "^4.1.3",
-    "less-loader": "^11.1.0",
+    "less-loader": "^12.2.0",
     "moment": "^2.29.1",
     "nanoid": "^5.0.1",
     "primereact": "^10.0.9",