Update the vitest browser config

The `browser.name` field was deprecated in favor of `browser.instances`.

Author: remcohaszing

vite.config.ts

@@ -29,8 +29,8 @@ export default defineConfig({
     browser: {
       enabled: true,
       headless: true,
-      name: 'chromium',
-      provider: 'playwright'
+      provider: 'playwright',
+      instances: [{ browser: 'chromium' }]
     },
     coverage: {
       enabled: true,