fix introduced typo in changelog

Author: kantai

CHANGELOG.md

@@ -38,7 +38,7 @@ and this project adheres to the versioning scheme outlined in the [README.md](RE
 ### Changed
 
 - The RPC endpoint `/v3/block_proposal` no longer will evaluate block proposals more than `block_proposal_max_age_secs` old
-- When a transaction is dropped due to replauce-by-fee, the `/drop_mempool_tx` event observer payload now includes `new_txid`, which is the transaction that replaced this dropped transaction. When a transaction is dropped for other reasons, `new_txid` is `null`. [#5381](https://github.com/stacks-network/stacks-core/pull/5381)
+- When a transaction is dropped due to replace-by-fee, the `/drop_mempool_tx` event observer payload now includes `new_txid`, which is the transaction that replaced this dropped transaction. When a transaction is dropped for other reasons, `new_txid` is `null`. [#5381](https://github.com/stacks-network/stacks-core/pull/5381)
 - Nodes will assume that all PoX anchor blocks exist by default, and stall initial block download indefinitely to await their arrival (#5502)
 
 ### Fixed