Bump dompurify and monaco-editor in /src/playground

Bumps [dompurify](https://github.com/cure53/DOMPurify) to 3.2.7 and updates ancestor dependency [monaco-editor](https://github.com/microsoft/monaco-editor). These dependencies need to be updated together.


Updates `dompurify` from 3.1.7 to 3.2.7
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](cure53/DOMPurify@3.1.7...3.2.7)

Updates `monaco-editor` from 0.54.0 to 0.55.1
- [Release notes](https://github.com/microsoft/monaco-editor/releases)
- [Changelog](https://github.com/microsoft/monaco-editor/blob/main/CHANGELOG.md)
- [Commits](microsoft/monaco-editor@v0.54.0...v0.55.1)

---
updated-dependencies:
- dependency-name: dompurify
  dependency-version: 3.2.7
  dependency-type: indirect
- dependency-name: monaco-editor
  dependency-version: 0.55.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/playground/package-lock.json

@@ -33,7 +33,7 @@
   "dependencies": {
     "@microsoft/applicationinsights-web": "3.3.10",
     "bootstrap": "5.3.8",
-    "monaco-editor": "0.54.0",
+    "monaco-editor": "0.55.1",
     "pako": "2.1.0",
     "react": "19.2.1",
     "react-bootstrap": "2.10.10",