Add changelog entry

Author: aumetra

CHANGELOG.md

@@ -11,10 +11,12 @@ and this project adheres to
 - cosmwasm-vm: Add `secp256r1_verify` and `secp256r1_recover_pubkey` imports for
   ECDSA signature verification over secp256r1. ([#1983], [#2057], [#2058])
 - cosmwasm-vm: Add metrics for the pinned memory cache ([#2059])
+- cosmwasm-derive: The crate used in the expansion can now be renamed ([#2068])
 
 [#1983]: https://github.com/CosmWasm/cosmwasm/pull/1983
 [#2057]: https://github.com/CosmWasm/cosmwasm/pull/2057
 [#2058]: https://github.com/CosmWasm/cosmwasm/pull/2058
+[#2068]: https://github.com/CosmWasm/cosmwasm/pull/2068
 
 ### Changed