fix(benchmark): Fix scaling mode setup (#10780)

packages/@n8n/benchmark/scripts/n8nSetups/scaling/docker-compose.yml

@@ -154,7 +154,7 @@ services:
       - DB_POSTGRESDB_PASSWORD=password
 
     volumes:
-      - ${RUN_DIR}/n8n-main:/n8n
+      - ${RUN_DIR}/n8n-main1:/n8n
     depends_on:
       n8n_worker1:
         condition: service_healthy

packages/@n8n/benchmark/scripts/n8nSetups/scaling/setup.mjs

@@ -8,7 +8,7 @@ import { fs } from 'zx';
  * permissions get set correctly.
  */
 export function setup({ runDir }) {
-	const neededDirs = ['n8n-worker1', 'n8n-worker2', 'n8n-main1', 'n8n_main2', 'postgres'];
+	const neededDirs = ['n8n-worker1', 'n8n-worker2', 'n8n-main1', 'n8n-main2', 'postgres'];
 
 	for (const dir of neededDirs) {
 		fs.ensureDirSync(path.join(runDir, dir));