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

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src/moscot/problems/cross_modality/_mixins.py

@@ -208,7 +208,7 @@ def annotation_mapping(  # type: ignore[misc]
             - ``'max'`` - pick the label of the annotated cell with the highest matching probability.
             - ``'sum'`` - aggregate the annotated cells by label then
               pick the label with the highest total matching probability.
-              
+
         annotation_label
             Key in :attr:`~anndata.AnnData.obs` where the annotation is stored.
         forward