Fix
* Add option to set entity_id_col_name_out in legacy predictor group spec ([`4094dc1`](https://github.com/Aarhus-Psychiatry-Research/timeseriesflattener/commit/4094dc103fb7b2ed18143c8104504f897e8f37fa))
Documentation
* Update pre-commit.yml highlight legacy spec change ([`fcff53e`](https://github.com/Aarhus-Psychiatry-Research/timeseriesflattener/commit/fcff53efe2417ee65c7f97452bcd201f1f0d0dc0))