Update CHANGELOG.md

Co-authored-by: Christoph Otter <[email protected]>

Author: webmaster128

CHANGELOG.md

@@ -24,7 +24,7 @@ and this project adheres to
 - cosmwasm-std: Add `WriteAcknowledgement` to `Ibc2Msg` - ([#2425])
 - cosmwasm-vm: Add `ibc2_packet_timeout` entrypoint - ([#2454])
 - cosmwasm-std: Add `Ibc2PacketTimeoutMsg` message - ([#2454])
-- cosmwasm-std: Add `cosmwasm_std::testing::Envs`, which is a `Env` factory for
+- cosmwasm-std: Add `cosmwasm_std::testing::Envs`, which is an `Env` factory for
   testing environments. It auto-increments block heights and timestamps. It
   allows for advanced configurations such as custom address prefixes. ([#2442])