Intermittent test failures on CI for Db2 connector [DBZ-5252]

Migrated from [DBZ-5252](https://issues.redhat.com/browse/DBZ-5252)

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Error: Failures:
Error: Db2ConnectorIT.restartInTheMiddleOfTxAfterSnapshot:684->restartInTheMiddleOfTx:601 expected size:<30> but was:<0> for <[]>
Error: Db2ConnectorIT.shouldConsumeEventsWithMaskedAndTruncatedColumns:748 expecting actual value not to be null
Error: Db2ConnectorIT.shouldPropagateSourceTypeByDatatype:829 expecting actual value not to be null
Error: Db2ConnectorIT.updatePrimaryKey:176 expecting actual value not to be null
Error: Errors:
Error: Db2ConnectorIT.deleteWithoutTombstone:108 » SQL ASNCAP server did not start.
Error: Db2ConnectorIT.restartInTheMiddleOfTx:696->restartInTheMiddleOfTx:572 » SQL ASNCAP server did not start.
Error: Db2ConnectorIT.restartInTheMiddleOfTxAfterCompletedTx:690->restartInTheMiddleOfTx:583 » IndexOutOfBounds Index 0 out of bounds for length 0
Error: Db2ConnectorIT.shouldRewriteIdentityKey:785 » SQL ASNCAP server did not start.
Error: Db2ConnectorIT.testTableExcludeList:512 » SQL ASNCAP server did not start.
Error: Db2ConnectorIT.testTableIncludeList:471 » SQL ASNCAP server did not start.
Error: Db2ConnectorIT.updatePrimaryKeyWithRestartInMiddle:284 NullPointer Cannot invoke "java.util.List.addAll(java.util.Collection)" because "tableA" is null
Error: Db2ConnectorIT.verifyOffsets:367 » SQL ASNCAP server did not start.
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