feat: implement `Filecoin.EthGetBlockByNumber` #8143

Job	Run time
Build MacOS	4m 32s
Build Ubuntu	5m 24s
cargo-publish-dry-run	6m 7s
Calibnet check	3m 10s
State migrations	4m 47s
Calibnet stateless mode check	5m 43s
Forest CLI checks	6m 40s
Snapshot export checks	7m 20s
Calibnet kademlia checks	3m 8s
Calibnet no discovery checks	1m 8s
Wallet tests	3m 41s
Calibnet RPC checks	6m 14s
db-migration-checks	7m 42s
db-migration-checks-car-db	1m 41s
Devnet checks	5m 24s
	1h 12m 41s

Provide feedback