Bump jest from 26.4.0 to 26.4.2 (prettier#325)

Bumps [jest](https://github.com/facebook/jest) from 26.4.0 to 26.4.2.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](jestjs/jest@v26.4.0...v26.4.2)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -49,7 +49,7 @@
     "fs-extra": "9.0.1",
     "html-webpack-plugin": "4.3.0",
     "husky": "4.2.5",
-    "jest": "26.4.0",
+    "jest": "26.4.2",
     "lint-staged": "10.2.11",
     "merge-json-webpack-plugin": "1.2.0",
     "react-devtools": "4.8.2",