Bump markdown-it-table-of-contents from 0.8.0 to 0.9.0

Bumps [markdown-it-table-of-contents](https://github.com/cmaas/markdown-it-table-of-contents) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/cmaas/markdown-it-table-of-contents/releases)
- [Changelog](https://github.com/cmaas/markdown-it-table-of-contents/blob/master/CHANGELOG.md)
- [Commits](cmaas/markdown-it-table-of-contents@v0.8.0...v0.9.0)

---
updated-dependencies:
- dependency-name: markdown-it-table-of-contents
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -42,7 +42,7 @@
     "markdown-it-mark": "^4.0.0",
     "markdown-it-sub": "^2.0.0",
     "markdown-it-sup": "^2.0.0",
-    "markdown-it-table-of-contents": "^0.8.0",
+    "markdown-it-table-of-contents": "^0.9.0",
     "markdown-it-task-lists": "^2.1.1",
     "mine.css": "^10.0.0",
     "p-map": "^7.0.2",