[upd] web-client (simple): Bump less in /client/simple

Bumps [less](https://github.com/less/less.js) from 4.2.2 to 4.3.0.
- [Release notes](https://github.com/less/less.js/releases)
- [Changelog](https://github.com/less/less.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/less/less.js/compare/v4.2.2...v4.3.0)

---
updated-dependencies:
- dependency-name: less
  dependency-version: 4.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

client/simple/package.json

@@ -18,7 +18,7 @@
     "globals": "^16.0.0",
     "ionicons": "^7.4.0",
     "leaflet": "^1.9.4",
-    "less": "^4.2.2",
+    "less": "^4.3.0",
     "less-loader": "^12.2.0",
     "normalize.css": "^8.0.1",
     "sharp": "^0.34.1",