chore: tweak trace

Author: hi-ogawa

packages/plugin-rsc/playwright.config.ts

@@ -3,7 +3,8 @@ import { defineConfig, devices } from '@playwright/test'
 export default defineConfig({
   testDir: 'e2e',
   use: {
-    trace: 'on-first-retry',
+    // trace: 'on-first-retry',
+    trace: 'retain-on-failure',
   },
   expect: {
     toPass: { timeout: 5000 },