[json-rpc-types] Reduce visual noise for param parsing tests
[json-rpc-types] Reduce visual noise for param parsing tests

Closes: #8511

libra/libra,aptos-labs/aptos-core,libra/libra,libra/libra,aptos-labs/aptos-core,libra/libra,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core