chore: bump less from 4.2.0 to 4.2.1 in /web (#4173)

Bumps [less](https://github.com/less/less.js) from 4.2.0 to 4.2.1.
- [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/commits)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

web/package.json

@@ -73,7 +73,7 @@
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.2.1",
     "eslint-plugin-react": "^7.37.2",
-    "less": "^4.2.0",
+    "less": "^4.2.1",
     "long": "^5.2.3",
     "nice-grpc-web": "^3.3.5",
     "postcss": "^8.4.47",