chore(deps-dev): bump @types/unist from 2.0.11 to 3.0.3

Bumps [@types/unist](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/unist) from 2.0.11 to 3.0.3.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/unist)

---
updated-dependencies:
- dependency-name: "@types/unist"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -42,7 +42,7 @@
     "unist-util-visit": "^4.1.2"
   },
   "devDependencies": {
-    "@types/unist": "^2.0.6",
+    "@types/unist": "^3.0.3",
     "mdast-util-to-string": "^3.1.1",
     "prettier": "^3.3.3",
     "rehype-raw": "^6.1.1",