Bump unist-util-visit from 5.0.0 to 5.1.0 in /docs

Bumps [unist-util-visit](https://github.com/syntax-tree/unist-util-visit) from 5.0.0 to 5.1.0.
- [Release notes](https://github.com/syntax-tree/unist-util-visit/releases)
- [Commits](syntax-tree/unist-util-visit@5.0.0...5.1.0)

---
updated-dependencies:
- dependency-name: unist-util-visit
  dependency-version: 5.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

docs/package-lock.json

@@ -18,7 +18,7 @@
     "@alephdata/followthemoney": "^3.8.4",
     "astro": "^5.8.1",
     "astro-theme-docs": "github:alephdata/astro-theme-docs",
-    "unist-util-visit": "^5.0.0"
+    "unist-util-visit": "^5.1.0"
   },
   "devDependencies": {
     "@untitaker/hyperlink": "^0.1.44",