fix(deps): Bump unocss from 0.61.9 to 0.62.3 in /example

Bumps [unocss](https://github.com/unocss/unocss) from 0.61.9 to 0.62.3.
- [Release notes](https://github.com/unocss/unocss/releases)
- [Commits](unocss/unocss@v0.61.9...v0.62.3)

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

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

example/package.json

@@ -10,7 +10,7 @@
   },
   "dependencies": {
     "ping.js": "^0.3.0",
-    "unocss": "^0.61.0",
+    "unocss": "^0.62.3",
     "v-github-icon": "^3.2.2",
     "v-offline": "^3.5.0",
     "vue": "^3.4.30"