Bump less from 3.13.1 to 4.1.0

Bumps [less](https://github.com/less/less.js) from 3.13.1 to 4.1.0.
- [Release notes](https://github.com/less/less.js/releases)
- [Changelog](https://github.com/less/less.js/blob/master/CHANGELOG.md)
- [Commits](less/less.js@v3.13.1...v4.1.0)

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

Author: dependabot-preview[bot]

package.json

@@ -55,7 +55,7 @@
     "father": "^2.23.1",
     "father-build": "^1.18.6",
     "gh-pages": "^3.1.0",
-    "less": "^3.11.1",
+    "less": "^4.1.0",
     "np": "^7.1.0",
     "react": "^16.10.2",
     "react-dom": "^16.10.2",