style: apply ruff formatting to anopheles.py

Author: adilraza99

malariagen_data/anopheles.py

@@ -1788,9 +1788,9 @@ def plot_haplotype_network(
             # charts
             for i, (v, c) in enumerate(color_discrete_map_prepped.items()):
                 node_style[f"pie-{i + 1}-background-color"] = c
-                node_style[
-                    f"pie-{i + 1}-background-size"
-                ] = f"mapData({v}, 0, 100, 0, 100)"
+                node_style[f"pie-{i + 1}-background-size"] = (
+                    f"mapData({v}, 0, 100, 0, 100)"
+                )
         node_stylesheet = {
             "selector": "node",
             "style": node_style,