chore: uses globalSetup for starting memory db

test/setup.js

@@ -0,0 +1,23 @@
+import { MongoMemoryReplSet } from 'mongodb-memory-server'
+
+// eslint-disable-next-line no-restricted-exports
+export default async () => {
+  // @ts-expect-error
+  process.env.NODE_ENV = 'test'
+  process.env.PAYLOAD_DROP_DATABASE = 'true'
+  process.env.NODE_OPTIONS = '--no-deprecation'
+
+  if (
+    (!process.env.PAYLOAD_DATABASE || process.env.PAYLOAD_DATABASE === 'mongoose') &&
+    !global._mongoMemoryServer
+  ) {
+    global._mongoMemoryServer = await MongoMemoryReplSet.create({
+      replSet: {
+        count: 3,
+        dbName: 'payloadmemory',
+      },
+    })
+
+    process.env.MONGODB_MEMORY_SERVER_URI = global._mongoMemoryServer.getUri()
+  }
+}