Update dependency less to v4.1.3

Author: renovate-bot

package-lock.json

@@ -42,7 +42,7 @@
     "file-loader": "6.2.0",
     "gh-pages": "4.0.0",
     "html-webpack-plugin": "5.5.0",
-    "less": "4.1.2",
+    "less": "4.1.3",
     "less-loader": "11.0.0",
     "node-sass": "7.0.1",
     "postcss-loader": "7.0.0",