chore(): Emit events in batch and index process event ids in batch (#12097)

**What**
First iteration to prevent events from overwhelming the systems.
- Group emitted event ids when possible instead of creating a message per id which leads to reduced amount of events to process massively in cases of import for example
- Update the index engine to process event data in batches of 100
- Update event handling by the index engine to be able to upsert by batch as well
- Fix index engine build config for intermediate listeners inferrence

packages/modules/index/integration-tests/__tests__/data-synchronizer.spec.ts

@@ -19,7 +19,7 @@ import { asValue } from "awilix"
 import * as path from "path"
 import { setTimeout } from "timers/promises"
 import { EventBusServiceMock } from "../__fixtures__"
-import { dbName } from "../__fixtures__/medusa-config"
+import config, { dbName } from "../__fixtures__/medusa-config"
 
 const eventBusMock = new EventBusServiceMock()
 const queryMock = {
@@ -147,14 +147,15 @@ describe("DataSynchronizer", () => {
       // Mock query response for products
       queryMock.graph.mockImplementation(async (config) => {
         if (Array.isArray(config.filters.id)) {
+          let data: any[] = []
           if (config.filters.id.includes(testProductId)) {
-            return {
-              data: [mockData[0]],
-            }
+            data.push(mockData[0])
           } else if (config.filters.id.includes(testProductId2)) {
-            return {
-              data: [mockData[1]],
-            }
+            data.push(mockData[1])
+          }
+
+          return {
+            data,
           }
         }