chore(deps): bump vditor from 3.6.6 to 3.9.0

Bumps [vditor](https://github.com/Vanessa219/vditor) from 3.6.6 to 3.9.0.
- [Release notes](https://github.com/Vanessa219/vditor/releases)
- [Changelog](https://github.com/Vanessa219/vditor/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Vanessa219/vditor/compare/v3.6.6...v3.9.0)

---
updated-dependencies:
- dependency-name: vditor
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -25,7 +25,7 @@
     "ng-zorro-antd": "^14.2.1",
     "rxjs": "^7.5.7",
     "tslib": "^2.0.3",
-    "vditor": "~3.6.3",
+    "vditor": "~3.9.0",
     "zone.js": "^0.12.0"
   },
   "devDependencies": {