Bump pasteboard from 0.2.0 to 0.3.0

Bumps [pasteboard](https://github.com/MixinNetwork/flutter-plugins/tree/main/packages) from 0.2.0 to 0.3.0.
- [Release notes](https://github.com/MixinNetwork/flutter-plugins/releases)
- [Commits](https://github.com/MixinNetwork/flutter-plugins/commits/HEAD/packages)

---
updated-dependencies:
- dependency-name: pasteboard
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

pubspec.yaml

@@ -23,7 +23,7 @@ dependencies:
   intl: 
   flutter_secure_storage: ^9.0.0
   smooth_page_indicator: ^1.0.0+2
-  pasteboard: ^0.2.0
+  pasteboard: ^0.3.0
   path_provider: ^2.0.13
   url_launcher: ^6.2.5
   #flutter_inappwebview: ^5.7.2+3