chore(deps-dev): bump @vue/test-utils

Bumps [@vue/test-utils](https://github.com/vuejs/vue-test-utils/tree/HEAD/packages/test-utils) from 1.0.0-beta.30 to 1.0.0-beta.31.
- [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/v1.0.0-beta.31/packages/test-utils)

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

package.json

@@ -45,7 +45,7 @@
     "@babel/preset-env": "^7.8.2",
     "@commitlint/cli": "^8.3.4",
     "@commitlint/config-conventional": "^8.3.4",
-    "@vue/test-utils": "^1.0.0-beta.30",
+    "@vue/test-utils": "^1.0.0-beta.31",
     "babel-eslint": "^10.0.3",
     "babel-jest": "^24.9.0",
     "cross-env": "^6.0.3",

yarn.lock

@@ -1165,10 +1165,10 @@
     sass "^1.18.0"
     stylus "^0.54.5"
 
-"@vue/test-utils@^1.0.0-beta.30":
-  version "1.0.0-beta.30"
-  resolved "https://registry.yarnpkg.com/@vue/test-utils/-/test-utils-1.0.0-beta.30.tgz#d5f26d1e2411fdb7fa7fdedb61b4b4ea4194c49d"
-  integrity sha512-Wyvcha9fNk8+kzTDwb3xWGjPkCPzHSYSwKP6MplrPTG/auhqoad7JqUEceZLc6u7AU4km2pPQ8/m9s0RgCZ0NA==
+"@vue/test-utils@^1.0.0-beta.31":
+  version "1.0.0-beta.31"
+  resolved "https://registry.yarnpkg.com/@vue/test-utils/-/test-utils-1.0.0-beta.31.tgz#580d6e45f07452e497d69807d80986e713949b73"
+  integrity sha512-IlhSx5hyEVnbvDZ3P98R1jNmy88QAd/y66Upn4EcvxSD5D4hwOutl3dIdfmSTSXs4b9DIMDnEVjX7t00cvOnvg==
   dependencies:
     dom-event-types "^1.0.0"
     lodash "^4.17.15"