chore: Update CHANGELOG (#2236)

Author: kulikthebird

CHANGELOG.md

@@ -4,10 +4,14 @@
 
 [Full Changelog](https://github.com/CosmWasm/wasmd/compare/v0.55.0...HEAD)
 
+ - chore: Change port prefix for IBCv2 messages to "wasm2" [\#2229](https://github.com/CosmWasm/wasmd/pull/2229)
+ - feat: IBCv2 timeout handler [\#2226](https://github.com/CosmWasm/wasmd/pull/2226)
+ - chore: source_client instead of channel_id in IBCv2 [\#2223](https://github.com/CosmWasm/wasmd/pull/2223)
+ - fix: Use seconds instead of nanoseconds for IBCv2 msg [\#2124](https://github.com/CosmWasm/wasmd/pull/2214)
  - Register IBC v2 route and store the IBC v2 port in ContractInfo [\#2122](https://github.com/CosmWasm/wasmd/issues/2122)
+ - chore: Remove unused keepers [\#2190](https://github.com/CosmWasm/wasmd/pull/2190)
  - Add IBC v2 SendPacket message encoding [\#2110](https://github.com/CosmWasm/wasmd/issues/2110)
 
-
 ## [v0.55.0](https://github.com/CosmWasm/wasmd/tree/v0.55.0) (2025-03-11)
 
 [Full Changelog](https://github.com/CosmWasm/wasmd/compare/v0.54.0...v0.55.0)