upgrade Cypress to v4.3.0

Author: bahmutov

README.md

@@ -1,4 +1,4 @@
-# cypress-react-unit-test [![Build Status](https://travis-ci.org/bahmutov/cypress-react-unit-test.svg?branch=master)](https://travis-ci.org/bahmutov/cypress-react-unit-test) [![Cypress.io tests](https://img.shields.io/badge/cypress.io-tests-green.svg?style=flat-square)](https://dashboard.cypress.io/#/projects/z9dxah) [![renovate-app badge][renovate-badge]][renovate-app] [![This project is using Percy.io for visual regression testing.](https://percy.io/static/images/percy-badge.svg)](https://percy.io/bahmutov/cypress-react-unit-test)
+# cypress-react-unit-test [![CircleCI](https://circleci.com/gh/bahmutov/cypress-react-unit-test/tree/master.svg?style=svg)](https://circleci.com/gh/bahmutov/cypress-react-unit-test/tree/master) [![Cypress.io tests](https://img.shields.io/badge/cypress.io-tests-green.svg?style=flat-square)](https://dashboard.cypress.io/#/projects/z9dxah) [![renovate-app badge][renovate-badge]][renovate-app] [![This project is using Percy.io for visual regression testing.](https://percy.io/static/images/percy-badge.svg)](https://percy.io/bahmutov/cypress-react-unit-test)
 
 > A little helper to unit test React components in the open source [Cypress.io](https://www.cypress.io/) E2E test runner **ALPHA**