Add GitHub Actions Reporter to Jest configuration

Author: wojtekmaj

jest.config.json

@@ -1,5 +1,6 @@
 {
   "collectCoverageFrom": ["**/src/**.{js,jsx}", "!**/src/entry.js", "!**/src/entry.nostyle.js"],
+  "reporters": ["default", "github-actions"],
   "setupFilesAfterEnv": ["@testing-library/jest-dom"],
   "testEnvironment": "jsdom"
 }