fix: uses chromium in testcafe tests (#4544)

* fix: TestCafe uses chromium as default

* Update TestCafe_test.js

* Update TestCafe.js

Author: kobenguyent

Diff for: test/helper/TestCafe_test.js

@@ -22,7 +22,7 @@ describe('TestCafe', function () {
       url: siteUrl,
       windowSize: '1000x700',
       show: false,
-      browser: 'chrome',
+      browser: 'chromium',
       restart: false,
       waitForTimeout: 5000,
     })