bugfix for call to structured_traceback (#14453) Calls to `structured_traceback` take the exploded 3-tuple of `*sys.exc_info()` as separate arguments, so we don't want to pass the 3-tuple as one argument. This should fix some of the symptoms people are seeing in https://github.com/ipython/ipython/issues/12831 Test plan: local editable install, seems to work OK. Haven't tried to repro the problem from the linked issue but this change probably can't hurt. From https://github.com/ipython/ipython/pull/14454, which is just an empty commit, I see the same test failures as in this PR's "Run Downstream tests" job: https://github.com/ipython/ipython/actions/runs/9375565881/job/25813901627?pr=14454 So I'm guessing it's not related to the change in this PR.