feat(jsonrpc): require `Sync` on transport params (#474) #185

Job	Run time
Build starknet-ff features	1m 12s
Build starknet-curve features	15s
Build starknet-crypto-codegen features	44s
Build starknet-crypto features	1m 3s
Build starknet-core features	1m 30s
Build starknet-providers features	1m 40s
Build starknet-signers features	50s
Build starknet-accounts features	1m 18s
Build starknet-contract features	1m 38s
Build starknet-macros features	41s
Build starknet features	2m 19s
	13m 10s

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