chore(deps): bump dompurify from 3.0.5 to 3.0.6

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 3.0.5 to 3.0.6.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](cure53/DOMPurify@3.0.5...3.0.6)

---
updated-dependencies:
- dependency-name: dompurify
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -80,7 +80,7 @@
     "classnames": "^2.3.1",
     "css.escape": "1.5.1",
     "deep-extend": "0.6.0",
-    "dompurify": "=3.0.5",
+    "dompurify": "=3.0.6",
     "ieee754": "^1.2.1",
     "immutable": "^3.x.x",
     "js-file-download": "^0.4.12",