[CI] Update Hugo to 0.139.4 (#5768)

Author: chalin

package.json

@@ -115,7 +115,7 @@
     "autoprefixer": "^10.4.20",
     "cspell": "^8.16.1",
     "gulp": "^5.0.0",
-    "hugo-extended": "0.139.2",
+    "hugo-extended": "0.139.4",
     "js-yaml": "^4.1.0",
     "markdown-link-check": "^3.13.6",
     "markdownlint": "^0.36.1",