fix: nil deref in usage of incomplete experiment config policies (#10068

)

Fix a call to cfg.Resources().Priority() on an experiment config without
schemas.WithDefaults. I didn't call with defaults because the config is
intentionally incomplete (we need to know what the user set, without
any defaulting).

master/internal/configpolicy/task_config_policy.go

@@ -257,8 +257,8 @@ func findAllowedPriority(scope *int, workloadType string) (limit int, exists boo
 			if err != nil {
 				return 0, false, fmt.Errorf("unable to unmarshal task config policies: %w", err)
 			}
-			if configs.Resources().Priority() != nil {
-				adminPriority := *configs.Resources().Priority()
+			if configs.RawResources != nil && configs.RawResources.RawPriority != nil {
+				adminPriority := *configs.RawResources.RawPriority
 				return adminPriority, false,
 					fmt.Errorf("priority set by invariant config: %w", errPriorityImmutable)
 			}