Bump jest from 26.6.3 to 27.0.4

Bumps [jest](https://github.com/facebook/jest) from 26.6.3 to 27.0.4.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](jestjs/jest@v26.6.3...v27.0.4)

---
updated-dependencies:
- dependency-name: jest
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -51,7 +51,7 @@
     "@babel/runtime": "^7.4.2",
     "@types/jest": "^26.0.0",
     "babel-jest": "^27.0.2",
-    "jest": "^26.0.0",
+    "jest": "^27.0.4",
     "mock-socket": "^9.0.2",
     "prettier": "^2.0.2",
     "rimraf": "^3.0.0",