chore(deps): update dependency @vue/test-utils to v1.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@vue/test-utils	devDependencies	patch	1.0.2 -> 1.0.3

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Release Notes

vuejs/vue-test-utils

### [`v1.0.3`](https://togithub.com/vuejs/vue-test-utils/releases/v1.0.3) [Compare Source](https://togithub.com/vuejs/vue-test-utils/compare/v1.0.2...v1.0.3) This is a small release, mainly to improve the deprecation messages. #### Bugfix/improvements fix [#​1541](https://togithub.com/vuejs/vue-test-utils/issues/1541): Improve deprecation messages ([#​1548](https://togithub.com/vuejs/vue-test-utils/issues/1548)) fix: added missing import of the Cheerio type (fix [#​1526](https://togithub.com/vuejs/vue-test-utils/issues/1526)) ([#​1527](https://togithub.com/vuejs/vue-test-utils/issues/1527)) fix: Add attachToDocument conditional deprecation message, ([#​1546](https://togithub.com/vuejs/vue-test-utils/issues/1546)) fix: Sync docs with v1.0 ([#​1538](https://togithub.com/vuejs/vue-test-utils/issues/1538))

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