Update deploy_website.yml and docusaurus.config.js for Docusaurus compatibility (#3339)

* Initial plan

* Bump Node.js to 22, migrate onBrokenMarkdownLinks, fix duplicate redirect

Co-authored-by: BornToBeRoot <16019165+BornToBeRoot@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: BornToBeRoot <16019165+BornToBeRoot@users.noreply.github.com>

Author: Copilot

.github/workflows/deploy_website.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
 
       - name: Get yarn cache
         id: yarn-cache

Website/docusaurus.config.js

@@ -24,7 +24,12 @@ const config = {
 
   onBrokenLinks: "throw",
   onBrokenAnchors: "throw",
-  onBrokenMarkdownLinks: "throw",
+
+  markdown: {
+    hooks: {
+      onBrokenMarkdownLinks: "throw",
+    },
+  },
 
   i18n: {
     defaultLocale: "en",
@@ -175,7 +180,6 @@ const config = {
             from: [
               "/docs/changelog/2025-6-13-0",
               "/docs/changelog/2025-7-9-0",
-              "/docs/changelog/2025-6-13-0",
             ],
             to: "/docs/changelog/2025-8-10-0",
           },