feat(consensus): send proposal content #5984

Job	Run time
executable-run	11m 5s
executable-run	15m 6s
build-papyrus-utilities-image	38s
build-papyrus-utilities-image	38s
executable-run-no-rpc	13m 50s
executable-run-no-rpc	13m 50s
integration-test	19m 56s
integration-test	19m 56s
test-no-rpc	7m 13s
test-no-rpc	7m 13s
random-table-test	3m 29s
random-table-test	3m 29s
	1h 56m 23s

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