message: Add 1.0.0-beta4 CHANGELOG section
diff: @@ -6,6 +6,8 @@ and this project adheres to
  ## [Unreleased]
  +## [1.0.0-beta4] - 2021-12-23
  +
  ### Changed
  - cosmwasm-vm: `wasmer` version bumped `2.1.0 -> 2.1.1`
  @@ -1213,7 +1215,9 @@ Some main points:
  All future Changelog entries will reference this base
  -[unreleased]: https://github.com/CosmWasm/cosmwasm/compare/v1.0.0-beta3...HEAD
  +[unreleased]: https://github.com/CosmWasm/cosmwasm/compare/v1.0.0-beta4...HEAD
  +[1.0.0-beta4]:
  + https://github.com/CosmWasm/cosmwasm/compare/v1.0.0-beta3...v1.0.0-beta4
  [1.0.0-beta3]:
  https://github.com/CosmWasm/cosmwasm/compare/v1.0.0-beta...v1.0.0-beta3
  [1.0.0-beta]: https://github.com/CosmWasm/cosmwasm/compare/v0.16.2...v1.0.0-beta
  