make test more resilient

Author: jenseng

workspaces/libnpmexec/test/with-lock.js

@@ -52,7 +52,7 @@ t.test('concurrent locking', async (t) => {
     await setTimeout(100)
     events.push('lock1 released')
   })
-  await setTimeout(0) // ensure lock1 is acquired before lock2
+  await setTimeout(50) // ensure lock1 is acquired before lock2
   const lockPromise2 = withLock(lockPath, async () => {
     events.push('lock2 acquired')
     await setTimeout(100)