Use min() instead of if to calculate ev_to_deallocate

This accepts a suggestion made by pylint.

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

src/frequenz/sdk/actor/power_distributing/_component_managers/_ev_charger_manager/_ev_charger_manager.py

@@ -389,8 +389,7 @@ def _deallocate_unused_power(self, to_deallocate: Power) -> dict[int, Power]:
             ev_to_deallocate = evc.last_allocation - evc.power
             if ev_to_deallocate <= Power.zero():
                 continue
-            if ev_to_deallocate >= to_deallocate - deallocated_power:
-                ev_to_deallocate = to_deallocate - deallocated_power
+            ev_to_deallocate = min(ev_to_deallocate, to_deallocate - deallocated_power)
             tgt_power = evc.last_allocation - ev_to_deallocate
             if tgt_power < min_power:
                 tgt_power = Power.zero()