near-sdk (Rust) 5.29.0

Added

• add env::chain_id (#1592)
• near-digest crate (#1571)
• add p256_verify (#1577)

Fixed

• return correct account id in current_contract_code for the GlobalByAccount case (#1601)
• read LazyOption value as None when the storage key does not exist (#1599)
• update indexes on UnorderedSet::defrag (#1597)
• remove correct indices on drop in Vec drain (#1595)
• remove stale entries for a partially consumed Drain after drop (#1593)
• unify AsNep297Event trait definition across the serde feature gate (#1587)
• re-key elements in collections::Vector::to_v2() (#1581)
• prevent Lazy::remove() from being resurrected by Drop-flush (#1580)