test: refactor int tests to use initPayloadInt which reduces boilerplate

test/plugin-nested-docs/int.spec.ts

@@ -5,6 +5,7 @@ import type {
 import type { Payload } from '../../packages/payload/src/index.js'
 
 import { getPayload } from '../../packages/payload/src/index.js'
+import { initPayloadInt } from '../helpers/initPayloadInt.js'
 import { startMemoryDB } from '../startMemoryDB.js'
 import configPromise from './config.js'
 
@@ -12,8 +13,7 @@ let payload: Payload
 
 describe('@payloadcms/plugin-nested-docs', () => {
   beforeAll(async () => {
-    const config = await startMemoryDB(configPromise)
-    payload = await getPayload({ config })
+    ;({ payload } = await initPayloadInt(configPromise))
   })
 
   afterAll(async () => {

test/plugin-nested-docs/payload-types.ts

@@ -72,7 +72,3 @@ export interface PayloadMigration {
   updatedAt: string
   createdAt: string
 }
-
-declare module 'payload' {
-  export interface GeneratedTypes extends Config {}
-}