Bump dompurify from 2.5.6 to 2.5.9

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 2.5.6 to 2.5.9.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](cure53/DOMPurify@2.5.6...2.5.9)

---
updated-dependencies:
- dependency-name: dompurify
  dependency-version: 2.5.9
  dependency-type: indirect
...

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

Author: dependabot[bot]

yarn.lock

@@ -7521,9 +7521,9 @@ domhandler@^4.0.0, domhandler@^4.2.0, domhandler@^4.3.1:
     domelementtype "^2.2.0"
 
 dompurify@^2.2.0:
-  version "2.5.6"
-  resolved "https://registry.yarnpkg.com/dompurify/-/dompurify-2.5.6.tgz#8402b501611eaa7fb3786072297fcbe2787f8592"
-  integrity sha512-zUTaUBO8pY4+iJMPE1B9XlO2tXVYIcEA4SNGtvDELzTSCQO7RzH+j7S180BmhmJId78lqGU2z19vgVx2Sxs/PQ==
+  version "2.5.9"
+  resolved "https://registry.yarnpkg.com/dompurify/-/dompurify-2.5.9.tgz#80481ec22dfac67285cc274cb51a45c1e9fa9c42"
+  integrity sha512-i6mvVmWN4xo9LrhCOZrDgSs9noW6nOahbrmzjRbPF36YPyj5Ue5lgok0MHDWkG7xzpWFO2OYttXdzM7rJxHvNA==
 
 domutils@^1.7.0:
   version "1.7.0"