Bump astro from 6.1.5 to 6.1.6 in the bun group (#18)

Bumps the bun group with 1 update: [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro).


Updates `astro` from 6.1.5 to 6.1.6
- [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@6.1.6/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 6.1.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: bun
...

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Author: dependabot[bot]

bun.lock

@@ -29,7 +29,7 @@
     "@astrojs/mdx": "5.0.3",
     "@astrojs/rss": "4.0.18",
     "@astrojs/sitemap": "3.7.2",
-    "astro": "6.1.5",
+    "astro": "6.1.6",
     "sharp": "0.34.5"
   },
   "devDependencies": {