[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

ehrapy/tools/_sa.py

@@ -9,6 +9,7 @@
 from lifelines import CoxPHFitter, KaplanMeierFitter
 from lifelines.statistics import StatisticalResult, logrank_test
 from scipy import stats
+
 from ehrapy.anndata import anndata_to_df
 
 if TYPE_CHECKING: