Initial support of firefox 115 for Zelenium tests

See merge request !1838
Status Job ID Name Coverage
  External
failed ERP5.CodingStyleTest-Master

failed ERP5.UnitTest-Master

failed ERP5.UnitTest-Zope2

passed SlapOS.Eggs.UnitTest-Master.Python2

passed SlapOS.Eggs.UnitTest-Master.Python3

passed Wendelin.UnitTest-Master