chore(deps): update dependency rspress-plugin-sitemap to ^1.2.1 (#1290)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/document/package.json

@@ -35,7 +35,7 @@
     "rsbuild-plugin-google-analytics": "^1.0.3",
     "rsbuild-plugin-open-graph": "^1.0.2",
     "rspress-plugin-font-open-sans": "^1.0.0",
-    "rspress-plugin-sitemap": "^1.1.4",
+    "rspress-plugin-sitemap": "^1.2.1",
     "typescript": "^5.9.2"
   },
   "dependencies": {