Run Keras 2.7+ tests against Python 3.7 (#5024)
Run Keras 2.7+ tests against Python 3.7 (#5024)

* Add

Signed-off-by: dbczumar <788ee0e05c0d85f4cc00fcea01dd78b80b5c7e71@databricks.com>

* Fix

Signed-off-by: dbczumar <788ee0e05c0d85f4cc00fcea01dd78b80b5c7e71@databricks.com>

* Remove testing line

Signed-off-by: dbczumar <788ee0e05c0d85f4cc00fcea01dd78b80b5c7e71@databricks.com>
mlflow/mlflow,mlflow/mlflow,mlflow/mlflow,mlflow/mlflow,mlflow/mlflow,mlflow/mlflow,mlflow/mlflow