Update dependency astro to v5.5.3

Author: renovate[bot]

package.json

@@ -37,7 +37,7 @@
     "@deno/astro-adapter": "0.3.0",
     "@tailwindcss/vite": "^4.0.11",
     "@types/canvas-confetti": "1.9.0",
-    "astro": "5.5.2",
+    "astro": "5.5.3",
     "astro-compressor": "1.0.0",
     "badgen": "3.2.3",
     "canvas-confetti": "1.9.3",