Bump happy-dom from 14.7.1 to 15.10.2 in /src/Client

Bumps [happy-dom](https://github.com/capricorn86/happy-dom) from 14.7.1 to 15.10.2.
- [Release notes](https://github.com/capricorn86/happy-dom/releases)
- [Commits](capricorn86/happy-dom@v14.7.1...v15.10.2)

---
updated-dependencies:
- dependency-name: happy-dom
  dependency-type: direct:development
...

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

Author: dependabot[bot]

src/Client/package-lock.json

@@ -52,7 +52,7 @@
     "eslint-plugin-prettier": "~5.1.3",
     "eslint-plugin-react-hooks": "~4.6.0",
     "eslint-plugin-react-refresh": "~0.4.5",
-    "happy-dom": "^14.7.1",
+    "happy-dom": "^15.10.2",
     "lightningcss": "^1.24.1",
     "openapi-typescript": "^6.7.5",
     "prettier": "^3.2.5",