Fix(medusa): Missing location id on fulfillments (#3462)

**What**
- include location id when creating a fulfillment
- Allow location updates to reservations without passing along quantity

**Why**
- location_id on fulfillment was null after creation

Fixes CORE-1242, CORE-1243

packages/medusa/src/api/routes/admin/orders/create-fulfillment.ts

@@ -121,6 +121,7 @@ export default async (req, res) => {
     await orderServiceTx.createFulfillment(id, validatedBody.items, {
       metadata: validatedBody.metadata,
       no_notification: validatedBody.no_notification,
+      location_id: validatedBody.location_id,
     })
 
     if (validatedBody.location_id) {