Bump rehype-autolink-headings from 5.1.0 to 6.1.0

Bumps [rehype-autolink-headings](https://github.com/rehypejs/rehype-autolink-headings) from 5.1.0 to 6.1.0.
- [Release notes](https://github.com/rehypejs/rehype-autolink-headings/releases)
- [Commits](rehypejs/rehype-autolink-headings@5.1.0...6.1.0)

---
updated-dependencies:
- dependency-name: rehype-autolink-headings
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -32,7 +32,7 @@
 		"prettier": "^2.5.1",
 		"prettier-plugin-svelte": "^2.5.1",
 		"pug": "^3.0.2",
-		"rehype-autolink-headings": "^5.1.0",
+		"rehype-autolink-headings": "^6.1.0",
 		"rehype-slug": "^4.0.1",
 		"remark-abbr": "^1.4.1",
 		"remark-github": "^10.1.0",