MLflow: On CI, use model "ets_cds_dt" only, having the smallest MASE

[amotl]

Problem

• ML: Update to mlflow-cratedb 2.10.2 #296 is constantly failing now.
  • AutoML: CI trips with ValueError: Input contains NaN. #298

Solution

@andnig suggested:

Use a different model for the test run, one which has less MASE.

• AutoML: CI trips with ValueError: Input contains NaN. #298 (comment)

Thanks!

[amotl]

@andnig suggested at #298 (comment) that this patch is wrong, so I am closing the PR again. Thanks!