Bump markdown-it-anchor from 9.0.1 to 9.1.0

Bumps [markdown-it-anchor](https://github.com/valeriangalliat/markdown-it-anchor) from 9.0.1 to 9.1.0.
- [Release notes](https://github.com/valeriangalliat/markdown-it-anchor/releases)
- [Changelog](https://github.com/valeriangalliat/markdown-it-anchor/blob/master/CHANGELOG.md)
- [Commits](valeriangalliat/markdown-it-anchor@v9.0.1...v9.1.0)

---
updated-dependencies:
- dependency-name: markdown-it-anchor
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -81,7 +81,7 @@
     "lodash": "^4.17.21",
     "lorem-ipsum": "^2.0.8",
     "markdown-it": "^14.1.0",
-    "markdown-it-anchor": "^9.0.1",
+    "markdown-it-anchor": "^9.1.0",
     "markdown-it-attrs": "^4.1.6",
     "markdown-it-deflist": "^3.0.0",
     "markdown-it-footnote": "^4.0.0",