For each build mode, each CocoaPod-only plugin framework should be built into the --output directory within the FlutterPluginRegistrant/[BuildMode]/Frameworks/CocoaPods subdirectory.
├── FlutterPluginRegistrant
│ ├── Debug
│ │ ├── Frameworks
│ │ │ ├── CocoaPods
│ │ │ │ ├── plugin_a.xcframework
│ │ │ │ ├── plugin_b.xcframework
For each build mode, each CocoaPod-only plugin framework should be built into the
--outputdirectory within theFlutterPluginRegistrant/[BuildMode]/Frameworks/CocoaPodssubdirectory.