Bump dompurify from 2.2.7 to 2.5.4 in /src/main/frontend

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 2.2.7 to 2.5.4.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](cure53/DOMPurify@2.2.7...2.5.4)

---
updated-dependencies:
- dependency-name: dompurify
  dependency-type: direct:production
...

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

src/main/frontend/package.json

@@ -15,7 +15,7 @@
     "@vanillawc/wc-monaco-editor": "^1.10.12",
     "body-parser": "^1.20.1",
     "compression": "^1.7.1",
-    "dompurify": "^2.2.7",
+    "dompurify": "^2.5.4",
     "marked": "^4.0.10",
     "polka": "^1.0.0-next.14",
     "sirv": "^1.0.11"