chore(deps): bump astro from 5.15.3 to 5.15.4

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 5.15.3 to 5.15.4.
- [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)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 5.15.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "@astrojs/rss": "^4.0.13",
     "@astrojs/sitemap": "^3.6.0",
     "@shikijs/colorized-brackets": "^3.14.0",
-    "astro": "^5.15.3",
+    "astro": "^5.15.5",
     "astro-auto-import": "^0.4.5",
     "satori": "^0.18.3",
     "satori-html": "^0.3.2",