chore(deps): bump astro

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 4.16.19 to 5.18.1.
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/astro@5.18.1/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/astro@5.18.1/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 5.18.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

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": "5.18.1",
     "typescript": "^5.5.4"
   },
   "devDependencies": {