chore: This helps output the migrations being applied (#6004)

## About the changes
This outputs to console.log but should be indexable:

![image](https://github.com/Unleash/unleash/assets/455064/cb696936-7060-447d-b22d-ff62b4dbcbc3)

src/migrator.ts

@@ -3,7 +3,7 @@ import { getInstance } from 'db-migrate';
 import { IUnleashConfig } from './lib/types/option';
 import { secondsToMilliseconds } from 'date-fns';
 
-log.setLogLevel('error');
+log.setLogLevel('info');
 
 export async function migrateDb({ db }: IUnleashConfig): Promise<void> {
     const custom = {