build(deps): bump @vue/cli-service in /website/client (#13134)

Bumps [@vue/cli-service](https://github.com/vuejs/vue-cli/tree/HEAD/packages/@vue/cli-service) from 4.5.11 to 4.5.12.
- [Release notes](https://github.com/vuejs/vue-cli/releases)
- [Changelog](https://github.com/vuejs/vue-cli/blob/dev/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vue-cli/commits/v4.5.12/packages/@vue/cli-service)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

website/client/package.json

@@ -22,7 +22,7 @@
     "@vue/cli-plugin-eslint": "^4.5.11",
     "@vue/cli-plugin-router": "^4.5.12",
     "@vue/cli-plugin-unit-mocha": "^4.5.11",
-    "@vue/cli-service": "^4.5.11",
+    "@vue/cli-service": "^4.5.12",
     "@vue/test-utils": "1.0.0-beta.29",
     "amplitude-js": "^7.4.1",
     "axios": "^0.21.1",