⬆️ deps: Update actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/lint-and-fmt.yml

@@ -88,7 +88,7 @@ jobs:
           package_json_file: "docs/package.json"
 
       - name: Setup Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           cache: "pnpm"
           cache-dependency-path: "docs/pnpm-lock.yaml"

.github/workflows/vitepress-deploy.yml

@@ -24,7 +24,7 @@ jobs:
           package_json_file: "docs/package.json"
 
       - name: Setup Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           cache: "pnpm"
           cache-dependency-path: "docs/pnpm-lock.yaml"