This broke because [we started returning an explicit `undefined` on error descriptions](https://github.com/n8n-io/n8n/pull/6841/files#diff-ea9bff15fe880ac829cc642c7e72a25d2348e331e77fc060cbe11a6effb6aeaeR430) [Test run](https://github.com/n8n-io/n8n/actions/runs/5879776481/job/15945235163)