ci: update dependencies

Author: itsMapleLeaf

package.json

@@ -12,7 +12,7 @@
   },
   "devDependencies": {
     "@biomejs/biome": "1.6.1",
-    "astro": "^4.7.0",
+    "astro": "^5.4.2",
     "npm-run-all": "^4.1.5",
     "prettier": "^3.1.1",
     "prettier-plugin-astro": "^0.13.0",