build(deps): bump fumadocs-core from 15.7.13 to 15.8.1

Bumps [fumadocs-core](https://github.com/fuma-nama/fumadocs) from 15.7.13 to 15.8.1.
- [Release notes](https://github.com/fuma-nama/fumadocs/releases)
- [Commits](https://github.com/fuma-nama/fumadocs/compare/[email protected]@15.8.1)

---
updated-dependencies:
- dependency-name: fumadocs-core
  dependency-version: 15.8.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -15,7 +15,7 @@
   },
   "dependencies": {
     "@types/mdx": "^2.0.13",
-    "fumadocs-core": "^15.7.13",
+    "fumadocs-core": "^15.8.1",
     "fumadocs-mdx": "^12.0.1",
     "fumadocs-ui": "^15.7.7",
     "lucide-react": "^0.544.0",