Bump dompurify from 2.4.1 to 2.5.6

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 2.4.1 to 2.5.6.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](cure53/DOMPurify@2.4.1...2.5.6)

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

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

Author: dependabot[bot]

yarn.lock

@@ -1585,9 +1585,9 @@ domain-browser@^1.1.1:
   integrity sha512-jnjyiM6eRyZl2H+W8Q/zLMA481hzi0eszAaBUzIVnmYVDBbnLxVNnfu1HgEBvCbL+71FrxMl3E6lpKH7Ge3OXA==
 
 dompurify@^2.2.8:
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/dompurify/-/dompurify-2.4.1.tgz#f9cb1a275fde9af6f2d0a2644ef648dd6847b631"
-  integrity sha512-ewwFzHzrrneRjxzmK6oVz/rZn9VWspGFRDb4/rRtIsM1n36t9AKma/ye8syCpcw+XJ25kOK/hOG7t1j2I2yBqA==
+  version "2.5.6"
+  resolved "https://registry.yarnpkg.com/dompurify/-/dompurify-2.5.6.tgz#8402b501611eaa7fb3786072297fcbe2787f8592"
+  integrity sha512-zUTaUBO8pY4+iJMPE1B9XlO2tXVYIcEA4SNGtvDELzTSCQO7RzH+j7S180BmhmJId78lqGU2z19vgVx2Sxs/PQ==
 
 dot-prop@^5.2.0:
   version "5.3.0"