chore(deps): bump dompurify and @types/dompurify

Bumps [dompurify](https://github.com/cure53/DOMPurify) and [@types/dompurify](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/dompurify). These dependencies needed to be updated together.

Updates `dompurify` from 3.2.6 to 3.3.1
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](cure53/DOMPurify@3.2.6...3.3.1)

Updates `@types/dompurify` from 3.0.5 to 3.2.0
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/dompurify)

---
updated-dependencies:
- dependency-name: dompurify
  dependency-version: 3.3.1
  dependency-type: direct:production
- dependency-name: "@types/dompurify"
  dependency-version: 3.2.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

samples/react-application-alert-banner/package-lock.json

@@ -22,12 +22,12 @@
     "@microsoft/sp-dialog": "1.21.1",
     "@microsoft/sp-http": "1.21.1",
     "@pnp/spfx-controls-react": "^3.22.0",
-    "@types/dompurify": "^3.0.5",
+    "@types/dompurify": "^3.2.0",
     "@types/node": "^24.2.1",
     "@types/react": "^17.0.0",
     "@types/react-dom": "^17.0.0",
     "del": "^8.0.0",
-    "dompurify": "^3.2.6",
+    "dompurify": "^3.3.1",
     "gulp-cli": "^3.1.0",
     "marked": "^16.1.2",
     "react": "v17.0.0",