chore: bump project to php 8.5

src/Form/ChoiceLoader/BpnPickupChoiceLoader.php

@@ -21,7 +21,14 @@ class BpnPickupChoiceLoader implements ChoiceLoaderInterface
         $pickups = $this->dataProvider->getAll();
 
         foreach ($pickups as $pickup) {
-            $choices[$pickup->getCity()] = $pickup->getBusProId();
+            // The city is the label as well as the key, so a pickup the API reports
+            // without one has nothing to select and is left out.
+            $city = $pickup->getCity();
+            if (null === $city) {
+                continue;
+            }
+
+            $choices[$city] = $pickup->getBusProId();
         }
 
         ksort($choices);