[TRI-4331] We don't store/show thrown error `cause`

[matt-aitken]

When tasks throw, they don't show error causes.

throw new Error("A more specific error occurred", { cause: originalError });

The cause doesn't get stored and doesn't come through to the dashboard.

_TRI-4331

[yadavshubham01]

hey @matt-aitken i want to work on this issue