ERP5Type/tests: log details about browser environment

This can help debugging test failures on test nodes
8 jobs for feat/configurator_divergence_config
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

passed ERP5.CodingStyleTest-TestRunner1

00:54:43

passed ERP5.PerformanceTest-Master

failed ERP5.UnitTest-Master

failed ERP5.UnitTest-Master.Medusa

failed ERP5.UnitTest-TestRunner1

02:40:42

passed SlapOS.Eggs.UnitTest-Master.Python2

canceled ERP5.UnitTest-TestRunner1

00:52:33