Bump vitest from 2.0.5 to 2.1.1 in /client/web/antrea-ui (#494)

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 2.0.5 to 2.1.1.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v2.1.1/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

client/web/antrea-ui/package.json

@@ -28,7 +28,7 @@
     "react-router-dom": "^6.26.2",
     "typescript": "^5.6.2",
     "vite": "^5.4.5",
-    "vitest": "^2.0.5",
+    "vitest": "^2.1.1",
     "web-vitals": "^4.2.3"
   },
   "scripts": {