chore(release): publish packages

- thermion_dart@0.2.1-dev.0.0.4
 - thermion_flutter_web@0.1.0+5
 - thermion_flutter@0.2.1-dev.3
 - thermion_flutter_platform_interface@0.2.1-dev.3
 - thermion_flutter_ffi@0.2.1-dev.3

thermion_dart/CHANGELOG.md

@@ -1,3 +1,5 @@
+## 0.2.1-dev.0.0.4
+
 ## 0.2.1-dev.0.0.3
 
  - Bump "thermion_dart" to `0.2.1-dev.0.0.3`.

thermion_dart/pubspec.yaml

@@ -1,6 +1,6 @@
 name: thermion_dart
 description: 3D rendering toolkit for Dart.
-version: 0.2.1-dev.0.0.3
+version: 0.2.1-dev.0.0.4
 homepage: https://thermion.dev
 repository: https://github.com/nmfisher/thermion