🐛 Fix issue with schema mismatch on checkout response (#7)

Author: chuckcarpenter

package.json

@@ -23,7 +23,7 @@
   "dependencies": {
     "@astrojs/preact": "^4.1.3",
     "@astrojs/vercel": "^9.0.3",
-    "@polar-sh/astro": "^0.4.9",
+    "@polar-sh/astro": "^0.5.0",
     "@preact/signals": "^2.3.2",
     "@vercel/analytics": "^1.5.0",
     "@vercel/speed-insights": "^1.2.0",