Release 8.0.0

[RodrigoSMarques]

⚠️ BREAKING CHANGE

This is a major release which contains breaking API changes.

⚠️ SDK Initialization Changed

• useTestKey parameter is no longer supported at FlutterBranchSdk.init().

Check the instructions in README.MD on how to activate the key_test_.

🐛 Bug Fixes

• Fix issue Android app not getting correct deeplink from Branch when app is opened #283: Android app not getting correct deeplink from Branch when app is opened
• Fix issue Android non branch deep link sometimes not available #308: Android non branch deep link sometimes not available
• Fix issue Completion of await FlutterBranchSdk.init() doesn't mean native iOS plugin is ready? #309: Completion of await FlutterBranchSdk.init() doesn't mean native iOS plugin is ready?
• Fix issue Flutter SDK init falls into loop when race condition happens during the initialization.  #311: Flutter SDK init falls into loop when race condition happens during the initialization.
• Fix issue Issue with Branch.io Integration on Apple 14 pro #314: Issue with Branch.io Integration on Apple 14 pro
• Fix issue Not getting link after fresh install #316: Not getting link after fresh install

🔧 Native SDK Updates

• Updated included iOS SDK to 3.4.3 - iOS Version History

• Updated included Branch Android SDK to 5.12.0 - Android Version History