chore(sequencing): remove ConsensusMessage from converter test #8181

Job	Run time
integration-test	27m 25s
executable-run	12m 14s
executable-run-no-rpc	12m 39s
build-papyrus-utilities-image	35s
test-no-rpc	6m 12s
random-table-test	1m 55s
	1h 1m 0s

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