fixed IndexOutOfBoundsException during ./check.sh run

[iwsimon]

Got error when run ./check.sh
java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0
at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:100)
at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:106)
at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:302)
at java.base/java.util.Objects.checkIndex(Objects.java:385)
at java.base/java.util.ArrayList.get(ArrayList.java:427)
at com.hedera.node.app.hapi.utils.forensics.OrderedComparison.getNewSecondRecordStreamEntries(OrderedComparison.java:88)
at com.hedera.node.app.hapi.utils.forensics.OrderedComparison.findDifferencesBetweenV6(OrderedComparison.java:71)
at com.hedera.services.rcdiff.RcDiff.diffsGiven(RcDiff.java:119)
at com.hedera.services.rcdiff.RcDiff.call(RcDiff.java:93)
at com.hedera.services.rcdiff.RcDiff.call(RcDiff.java:44)
at picocli.CommandLine.executeUserObject(CommandLine.java:1953)
at picocli.CommandLine.access$1300(CommandLine.java:145)
at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2358)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2352)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2314)
at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2179)
at picocli.CommandLine$RunLast.execute(CommandLine.java:2316)
at picocli.CommandLine.execute(CommandLine.java:2078)
at com.hedera.services.rcdiff.RcDiff.main(RcDiff.java:78)