[CHIA-3609] Port `get_offer(s)` to `@marshal`#20062

Quexington wants to merge 2 commits intomainChia-Network/chia-blockchain:mainfrom

quex.port_get_offer_s_to_marshalChia-Network/chia-blockchain:quex.port_get_offer_s_to_marshalCopy head branch name to clipboard