fix: request ingredient network grouping only allowing a single entry to exist

Author: zznty

forge/src/main/java/ru/zznty/create_factory_logistics/mixin/logistics/panel/FactoryPanelRequestMixin.java

@@ -258,7 +258,10 @@ private void tickRequests(Operation<Void> original) {
                 Multimap<PackagerBlockEntity, GenericRequest> request = GenericLogisticsManager.findPackagersForRequest(
                         entry.getKey(), order, null, requestContext.recipeAddress());
 
-                requests.put(requestContext, request);
+                requests.merge(requestContext, request, (a, b) -> {
+                    a.putAll(b);
+                    return a;
+                });
             }
         }