chore(deps-dev): bump hast-util-heading-rank from 2.1.0 to 3.0.0 (#1002)

Bumps [hast-util-heading-rank](https://github.com/syntax-tree/hast-util-heading-rank) from 2.1.0 to 3.0.0.
- [Release notes](https://github.com/syntax-tree/hast-util-heading-rank/releases)
- [Commits](syntax-tree/hast-util-heading-rank@2.1.0...3.0.0)

---
updated-dependencies:
- dependency-name: hast-util-heading-rank
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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packages/www/package.json

@@ -30,7 +30,7 @@
     "@sveltejs/kit": "^2.0.0",
     "hast-util-has-property": "^2.0.0",
     "hast-util-heading": "^2.0.0",
-    "hast-util-heading-rank": "^2.1.0",
+    "hast-util-heading-rank": "^3.0.0",
     "hast-util-to-string": "^2.0.0",
     "hastscript": "^8.0.0",
     "lz-string": "^1.4.4",