message: update changelog for v0.34.3
diff: @@ -6,6 +6,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  +## [0.34.3]
  +### Fixed
  + - bug when transpiling bsc with custom function and parameter return types
  +
  +
  +
  ## [0.34.2] - 2021-03-04
  ### Added
  - support for loading bslib without alias (i.e. `@rokucommunity/bslib`).
  @@ -1024,3 +1030,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  [0.34.0]: https://github.com/rokucommunity/brighterscript/compare/v0.33.0...v0.34.0
  [0.34.1]: https://github.com/rokucommunity/brighterscript/compare/v0.34.0...v0.34.1
  [0.34.2]: https://github.com/rokucommunity/brighterscript/compare/v0.34.1...v0.34.2
  +[0.34.3]: https://github.com/rokucommunity/brighterscript/compare/v0.34.2...v0.34.3
  