build(deps): bump astro in /docs in the astro-docs group

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


Updates `astro` from 7.2.9 to 7.3.2
- [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@7.3.2/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 7.3.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: astro-docs
...

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

Author: dependabot[bot]

docs/package-lock.json

@@ -14,7 +14,7 @@
     "@astrojs/starlight": "^0.41.10",
     "@mermaid-js/layout-elk": "^0.2.3",
     "@nebari/starlight": "^1.1.0",
-    "astro": "^7.2.9",
+    "astro": "^7.3.2",
     "astro-mermaid": "^2.1.0",
     "mermaid": "^11.17.2",
     "pagefind": "^1.5.2",