Update requirements for astro and @astrojs/netlify in /dapp

Updates the requirements on [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) and [@astrojs/netlify](https://github.com/withastro/adapters/tree/HEAD/packages/netlify) to permit the latest version.

Updates `astro` from 4.16.17 to 5.0.5
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/[email protected]/packages/astro)

Updates `@astrojs/netlify` to 6.0.0
- [Release notes](https://github.com/withastro/adapters/releases)
- [Changelog](https://github.com/withastro/adapters/blob/main/packages/netlify/CHANGELOG.md)
- [Commits](https://github.com/withastro/adapters/commits/@astrojs/[email protected]/packages/netlify)

---
updated-dependencies:
- dependency-name: astro
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: "@astrojs/netlify"
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

dapp/package.json

@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@astrojs/check": "^0.9.4",
-    "@astrojs/netlify": "^5.5.4",
+    "@astrojs/netlify": "^6.0.0",
     "@astrojs/react": "^4.0.0",
     "@astrojs/tailwind": "5.1.3",
     "@creit.tech/sorobandomains-sdk": "^0.1.4",
@@ -11,7 +11,7 @@
     "@stellar/stellar-sdk": "^13.0.0",
     "@stellar/stellar-xdr-json": "^22.0.0-rc.1.1",
     "@web3-storage/w3up-client": "^16.5.2",
-    "astro": "4.16.17",
+    "astro": "5.0.5",
     "astro-seo": "^0.8.4",
     "crypto-js": "^4.2.0",
     "github-markdown-css": "^5.8.1",