ISSUE-13953: Flaky-test: PulsarDebeziumOracleSourceTest.testDebeziumOracleDbSource

[sijie]

Original Issue: apache#13953

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PulsarDebeziumOracleSourceTest is flaky. The testDebeziumOracleDbSource test method fails sporadically with a timeout.

Failed here: https://github.com/apache/pulsar/runs/4942922232?check_suite_focus=true for apache#13950

 Error:  testDebeziumOracleDbSource(org.apache.pulsar.tests.integration.io.sources.debezium.PulsarDebeziumOracleSourceTest)  Time elapsed: 1,800.05 s  <<< FAILURE!
org.testng.internal.thread.ThreadTimeoutException: Method org.apache.pulsar.tests.integration.io.sources.debezium.PulsarDebeziumOracleSourceTest.testDebeziumOracleDbSource() didn't finish within the time-out 1800000
	at org.testng.internal.MethodInvocationHelper.invokeWithTimeoutWithNewExecutor(MethodInvocationHelper.java:371)
	at org.testng.internal.MethodInvocationHelper.invokeWithTimeout(MethodInvocationHelper.java:282)
	at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:605)
	at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:174)
	at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
	at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:822)
	at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:147)
	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
	at org.testng.TestRunner.privateRun(TestRunner.java:764)
	at org.testng.TestRunner.run(TestRunner.java:585)
	at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
	at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
	at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
	at org.testng.SuiteRunner.run(SuiteRunner.java:286)
	at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
	at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
	at org.testng.TestNG.runSuitesSequentially(TestNG.java:1218)
	at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
	at org.testng.TestNG.runSuites(TestNG.java:1069)
	at org.testng.TestNG.run(TestNG.java:1037)
	at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:283)
	at org.apache.maven.surefire.testng.TestNGXmlTestSuite.execute(TestNGXmlTestSuite.java:75)
	at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:120)
	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
	at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)

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