refactor: migrate to typeorm 3.0 (#8443)

* wip

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* Update following.ts

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* Update resolve-user.ts

* maxQueryExecutionTime

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packages/backend/src/server/api/endpoints/drive/files/find.ts

@@ -1,5 +1,6 @@
 import define from '../../../define.js';
 import { DriveFiles } from '@/models/index.js';
+import { IsNull } from 'typeorm';
 
 export const meta = {
 	requireCredential: true,
@@ -30,10 +31,10 @@ export const paramDef = {
 
 // eslint-disable-next-line import/no-default-export
 export default define(meta, paramDef, async (ps, user) => {
-	const files = await DriveFiles.find({
+	const files = await DriveFiles.findBy({
 		name: ps.name,
 		userId: user.id,
-		folderId: ps.folderId,
+		folderId: ps.folderId ?? IsNull(),
 	});
 
 	return await Promise.all(files.map(file => DriveFiles.pack(file, { self: true })));