chore(deps): update devdependency less-loader to v12

Author: renovate[bot]

package.json

@@ -87,7 +87,7 @@
     "husky": "^7.0.1",
     "jsdom": "^26.1.0",
     "less": "^4.1.3",
-    "less-loader": "^11.1.2",
+    "less-loader": "^12.3.0",
     "mathsass": "^0.11.0",
     "nuxt": "3.7.3",
     "sass": "^1.62.1",