refactor: reduce info-level log verbosity for rewards, governance, and pos like chain and transactions. #695

Job	Run time
Format	1m 11s
Clippy	3m 41s
Tests	4m 32s
Docker (chain, chain)	9m 56s
Docker (governance, governance)	9m 51s
Validate Swagger	25s
Docker (pos, pos)	10m 19s
Docker (rewards, rewards)	9m 41s
Docker (seeder, seeder)	9m 43s
Docker (webserver, webserver)	9m 45s
Docker (parameters, parameters)	9m 55s
Docker (transactions, transactions)	9m 45s
can_enqueue	1s
can_merge	0s
	1h 28m 45s

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