v3.0.0 UIScene lifecycle support

What’s New:

• Add UIScene lifecycle support for iOS. Launch push notification detection now works correctly in apps using UIScene (required by iOS 27+, default in Flutter 3.41+).
• Updated supported appmetrica_plugin version to 4.0.0.
• Updated minimum Flutter version to 3.38.0 (Dart SDK 3.10.0).
• Add AppMetricaPushInfo to public API.
• Updated native SDK versions: Android to 4.3.0, iOS to 3.4.

Enhancements and Corrections:

• The specification of the native SDK version for iOS has been improved: now it defines a range from the minimum version up to the next major version.

Full Changelog: v2.4.0...v3.0.0