fix(deps): update astro monorepo

Author: renovate[bot]

package.json

@@ -15,9 +15,9 @@
   },
   "dependencies": {
     "@astrojs/check": "0.9.4",
-    "@astrojs/cloudflare": "12.2.1",
+    "@astrojs/cloudflare": "12.2.3",
     "@astrojs/starlight": "0.31.1",
-    "astro": "5.3.0",
+    "astro": "5.4.0",
     "semver": "7.7.1",
     "sharp": "0.33.5",
     "starlight-package-managers": "0.10.0",