[EE port] Update karma to 4.2.0
EE port of gitlab-org/gitlab-ce!31495 to check if the change should not break EE-specific tests.
Deprecated by !15009 (merged)
Edited by Takuya Noguchi
EE port of gitlab-org/gitlab-ce!31495 to check if the change should not break EE-specific tests.
Deprecated by !15009 (merged)