ISSUE-10796: Flaky-test: ManagedLedgerTest.testExpiredLedgerDeletionAfterManagedLedgerRestart

[sijie]

Original Issue: apache#10796

---

ManagedLedgerTest is flaky. The testExpiredLedgerDeletionAfterManagedLedgerRestart test method fails sporadically.

example failure

Error:  testExpiredLedgerDeletionAfterManagedLedgerRestart(org.apache.bookkeeper.mledger.impl.ManagedLedgerTest)  Time elapsed: 0.029 s  <<< FAILURE!
java.lang.AssertionError: expected [true] but found [false]
	at org.testng.Assert.fail(Assert.java:99)
	at org.testng.Assert.failNotEquals(Assert.java:1037)
	at org.testng.Assert.assertTrue(Assert.java:45)
	at org.testng.Assert.assertTrue(Assert.java:55)
	at org.apache.bookkeeper.mledger.impl.ManagedLedgerTest.testExpiredLedgerDeletionAfterManagedLedgerRestart(ManagedLedgerTest.java:2954)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
	at org.testng.internal.InvokeMethodRunnable.runOne(InvokeMethodRunnable.java:45)
	at org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:73)
	at org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:11)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)