Flutter. Why are there no libraries (pods) in iOS target (extension)? #142136

Problem with flutter when trying to use target

Steps to reproduce

1. I am adding a new target – AutoFill Credential Provider:
   
2. I do everything as written here – https://docs.flutter.dev/platform-integration/ios/app-extensions
3. In the settings “passwords” in the simulator choose my application:
   
4. On some site I try to enter a password and click on “passwords”:
   

Expected results
I expect that when I open the app through the “passwords” then I will see my app fully working, but only through extension. For example a simple screen with login:

Actual results
But I get it wrong. I use Firebase, and so I understand that this extension (target) does not see my packages that I added to pubspec.yaml, or does not see pods pods: