Bump astro from 6.1.1 to 6.1.5 (#63)

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 6.1.1 to 6.1.5.
- [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/astro@6.1.5/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 6.1.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

package-lock.json

@@ -15,7 +15,7 @@
     "@lorenzo_lewis/starlight-utils": "^0.3.2",
     "@nanostores/vue": "^1.1.0",
     "@tanstack/vue-form": "^1.29.0",
-    "astro": "^6.1.1",
+    "astro": "^6.1.6",
     "js-yaml": "^4.1.1",
     "nanostores": "^1.2.0",
     "sharp": "^0.34.2",