Bump jest from 26.2.2 to 26.4.2

Bumps [jest](https://github.com/facebook/jest) from 26.2.2 to 26.4.2.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/compare/v26.2.2...v26.4.2)

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

package.json

@@ -263,7 +263,7 @@
     "eslint-plugin-vue": "^6.2.2",
     "file-loader": "^6.0.0",
     "html-webpack-plugin": "^4.3.0",
-    "jest": "^26.1.0",
+    "jest": "^26.4.2",
     "jsdom": "^16.4.0",
     "json-loader": "^0.5.7",
     "listr": "^0.14.3",