Bump @vue/test-utils from 1.1.0 to 1.1.2

Bumps [@vue/test-utils](https://github.com/vuejs/vue-test-utils/tree/HEAD/packages/test-utils) from 1.1.0 to 1.1.2.
- [Release notes](https://github.com/vuejs/vue-test-utils/releases)
- [Changelog](https://github.com/vuejs/vue-test-utils/blob/dev/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vue-test-utils/commits/v1.1.2/packages/test-utils

)

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