feat(postgres): exporting pools for cjs

Author: rmolinamir

lib/postgres/src/index.ts

@@ -2,4 +2,5 @@ export * from './pg-transaction.js';
 export * from './pg-transaction-manager.js';
 export * from './nestjs/drizzle-orm.module.js';
 export * from './nestjs/pg-client.module.js';
+export * from './nestjs/pg-pool.module.js';
 export * from './nestjs/pg-transaction-manager.module.js';