Bump @vue/test-utils from 1.0.0-beta.31 to 1.0.3 in /client

Bumps [@vue/test-utils](https://github.com/vuejs/vue-test-utils/tree/HEAD/packages/test-utils) from 1.0.0-beta.31 to 1.0.3.
- [Release notes](https://github.com/vuejs/vue-test-utils/releases)
- [Changelog](https://github.com/vuejs/vue-test-utils/blob/dev/packages/test-utils/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vue-test-utils/commits/v1.0.3/packages/test-utils)

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

Author: dependabot-preview[bot]

client/package-lock.json

@@ -25,7 +25,7 @@
     "@vue/cli-plugin-eslint": "^4.2.3",
     "@vue/cli-service": "^4.2.3",
     "@vue/eslint-config-prettier": "^4.0.1",
-    "@vue/test-utils": "1.0.0-beta.31",
+    "@vue/test-utils": "1.0.3",
     "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "^10.1.0",
     "eslint": "^6.8.0",