Ignore Row in annotated Heatmap


is it possible to create an annotated Heatmap that ignores a row while the rest of the data is colored with a custom colorscale?

In my case i want that the last row in my heatmap is colored in white and the rest of the data should be colored in the way i defined my custom colorscale.

Screenshot 2021-03-09 112330

As you can see in the screenshot, it would be great if the last row is not getting colored.