Retry the Live UI tests to avoid random fails (#12120)

* Retry the Live UI tests to avoid random fails

* Don't skip this as maybe phantomjs fixed this bug?

* skipped as phantom seems to crash at this test

* retry the dashboard3 ui test which has random fails

* retry the ActionsDataTable suite

* // this test often fails for unknown reasons?      // the visitor log with site search is also currently tested in plugins/Live/tests/UI/expected-ui-screenshots/Live_visitor_log.png

* remove global retry as for some reasons it triggers    2) Live should show visitor log:       done() called multiple times