fix(deps): update @astrojs packages (#1301)

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

Author: renovate[bot]

package.json

@@ -28,13 +28,13 @@
     "@astrojs/node": "^9.4.6",
     "@astrojs/prism": "3.3.0",
     "@astrojs/react": "4.4.2",
-    "@astrojs/rss": "4.0.14",
-    "@astrojs/sitemap": "3.6.1",
+    "@astrojs/rss": "4.0.15",
+    "@astrojs/sitemap": "3.7.0",
     "@date-fns/tz": "^1.2.0",
     "@fontsource/source-code-pro": "5.2.7",
     "@fontsource/zen-kaku-gothic-new": "5.2.7",
     "@resvg/resvg-js": "2.6.2",
-    "astro": "5.16.8",
+    "astro": "5.16.15",
     "cheerio": "1.1.2",
     "date-fns": "4.1.0",
     "escape-html": "^1.0.3",