Migrate AGP and Gradle versions to 7.1.2/7.4 by @blasten in https://github.com/flutter/flutter/pull/99723

[web] flutter.js initialization with ui.webOnlyWarmupEngine by @ditman in https://github.com/flutter/flutter/pull/100177

[winuwp] Add removal warning in config help text by @cbracken in https://github.com/flutter/flutter/pull/101086

Retire v1 embedding compatibility from automatic multidex support by @GaryQian in https://github.com/flutter/flutter/pull/100685

Prepare flutter_tools for use_super_parameters by @goderbauer in https://github.com/flutter/flutter/pull/100509