chore(deps): bump astro

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 4.16.19 to 5.15.6.
- [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/astro@5.15.6/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 5.15.6
  dependency-type: direct:production
...

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Author: dependabot[bot]

dev-packages/e2e-tests/test-applications/astro-4/package.json

@@ -18,7 +18,7 @@
     "@sentry/astro": "* || latest",
     "@sentry-internal/test-utils": "link:../../../test-utils",
     "@spotlightjs/astro": "2.1.6",
-    "astro": "4.16.19",
+    "astro": "5.15.6",
     "typescript": "^5.5.4"
   },
   "devDependencies": {