message: CHANGELOG update - 0.15.2
diff: @@ -4,7 +4,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
  and this project adheres to
  [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
  -## [Unreleased]
  +## [0.15.2] - 2021-07-21
  ### Fixed
  @@ -993,7 +993,8 @@ Some main points:
  All future Changelog entries will reference this base
  -[unreleased]: https://github.com/CosmWasm/cosmwasm/compare/v0.15.1...HEAD
  +[unreleased]: https://github.com/CosmWasm/cosmwasm/compare/v0.15.2...HEAD
  +[0.15.2]: https://github.com/CosmWasm/cosmwasm/compare/v0.15.1...v0.15.2
  [0.15.1]: https://github.com/CosmWasm/cosmwasm/compare/v0.15.0...v0.15.1
  [0.15.0]: https://github.com/CosmWasm/cosmwasm/compare/v0.14.1...v0.15.0
  [0.14.1]: https://github.com/CosmWasm/cosmwasm/compare/v0.14.0...v0.14.1
  