Investigate discrepancy between Aggregator and Full Nodes in Integration Test

[Manav-Aggarwal]

The test TestTxGossipingAndAggregation in node/integration_test.go fails when checking equality between aggregator block and blocks known to full nodes here: https://github.com/celestiaorg/rollmint/blob/00c5837ce91568816e1634fc9a912b45dfb36a59/node/integration_test.go#L167

Relevant PR comment: https://github.com/celestiaorg/rollmint/pull/538/files#r998143767

We need to figure out why RawRootsList which is part of the block data of the two blocks differs.