[Docs Site] Bump dompurify and @types/dompurify (#18307)

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 3.1.6 to 3.2.1
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](cure53/DOMPurify@3.1.6...3.2.1)

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-type: direct:development
  update-type: version-update:semver-minor
- dependency-name: "@types/dompurify"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -40,7 +40,7 @@
 		"@codingheads/sticky-header": "^1.0.2",
 		"@iconify-json/material-symbols": "^1.2.7",
 		"@stoplight/json-schema-tree": "^4.0.0",
-		"@types/dompurify": "^3.0.5",
+		"@types/dompurify": "^3.2.0",
 		"@types/hast": "^3.0.4",
 		"@types/he": "^1.2.3",
 		"@types/node": "^22.9.1",
@@ -53,7 +53,7 @@
 		"astro-live-code": "^0.0.4",
 		"date-fns": "^4.1.0",
 		"detype": "1.0.12",
-		"dompurify": "3.1.6",
+		"dompurify": "3.2.1",
 		"dot-prop": "^9.0.0",
 		"fast-glob": "^3.3.2",
 		"github-slugger": "^2.0.0",