ci: Increase Playwright test parallelism (#18484)

packages/testing/playwright/playwright.config.ts

@@ -2,6 +2,7 @@
 import { currentsReporter } from '@currents/playwright';
 import { defineConfig } from '@playwright/test';
 import os from 'os';
+import path from 'path';
 
 import currentsConfig from './currents.config';
 import { getProjects } from './playwright-projects';
@@ -11,6 +12,7 @@ const IS_CI = !!process.env.CI;
 
 const MACBOOK_WINDOW_SIZE = { width: 1536, height: 960 };
 
+const USER_FOLDER = path.join(os.tmpdir(), `n8n-main-${Date.now()}`);
 // Calculate workers based on environment
 // The amount of workers to run, limited to 6 as higher causes instability in the local server
 // Use half the CPUs in local, full in CI (CI has no other processes so we can use more)
@@ -31,10 +33,18 @@ export default defineConfig({
 	// We use this if an n8n url is passed in. If the server is already running, we reuse it.
 	webServer: process.env.N8N_BASE_URL
 		? {
-				command: `cd .. && N8N_PORT=${getPortFromUrl(process.env.N8N_BASE_URL)} N8N_USER_FOLDER=/${os.tmpdir()}/n8n-main-$(date +%s) E2E_TESTS=true pnpm start`,
+				command: 'cd .. && pnpm start',
 				url: `${process.env.N8N_BASE_URL}/favicon.ico`,
 				timeout: 20000,
 				reuseExistingServer: true,
+				env: {
+					DB_SQLITE_POOL_SIZE: '40',
+					E2E_TESTS: 'true',
+					N8N_PORT: getPortFromUrl(process.env.N8N_BASE_URL),
+					N8N_USER_FOLDER: USER_FOLDER,
+					N8N_LOG_LEVEL: 'debug',
+					N8N_METRICS: 'true',
+				},
 			}
 		: undefined,