Bump dompurify from 2.2.4 to 2.2.6

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 2.2.4 to 2.2.6.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](https://github.com/cure53/DOMPurify/compare/2.2.4...2.2.6)

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

package.json

@@ -43,7 +43,7 @@
 		"@nextcloud/vue": "^3.3.2",
 		"@nextcloud/vue-dashboard": "^1.0.1",
 		"blueimp-md5": "^2.18.0",
-		"dompurify": "^2.2.4",
+		"dompurify": "^2.2.6",
 		"lodash": "^4.17.20",
 		"markdown-it": "^12.0.3",
 		"markdown-it-task-lists": "^2.1.1",