Fix flaky Bun test

Author: eps1lon

test/integration/create-next-app/package-manager/bun.test.ts

@@ -7,7 +7,7 @@ import {
   useTempDir,
 } from '../utils'
 
-const lockFile = 'bun.lockb'
+const lockFile = 'bun.lock'
 const files = [...DEFAULT_FILES, lockFile]
 
 describe('create-next-app with package manager bun', () => {
@@ -26,7 +26,7 @@ describe('create-next-app with package manager bun', () => {
 
     await command('bun', ['--version'])
       // install bun if not available
-      .catch(() => command('npm', ['i', '-g', 'bun']))
+      .catch(() => command('npm', ['i', '-g', 'bun@1.2.4']))
   })
 
   it('should use bun for --use-bun flag', async () => {