feat(deps): upgrade to Flutter 3.47

[marcossevilla]

Upgrade this package to support Flutter 3.47.0 (bundled Dart 3.13.0).

• Bump the flutter/sdk constraints in pubspec.yaml
• Verify tests and lints pass on the new SDK

[unicoderbot]

Great, I will work on a PR and push it soon.

• Preparing environment
  • Cloning repository
  • Setting up dev environment
• Working on changes
• Reviewing changes
• Opening pull request

I've opened a pull request: #486