[Bug]: is_targeted is missing inside sign_in

[ameijer552]

Bug Description

the await activity.sign_in() raises an AttributeError.

Steps to Reproduce

1. install microsoft-teams-app version 2.0.0a18

async def _handle_message(
        self,
        activity: ActivityContext[MessageActivity],
    ) -> None:
        """
        Handle incoming message activity.

        Args:
            activity: The activity context containing the message details.

        Returns:
            None
        """

        try:
            if activity.is_signed_in:
                pass
            else:
                token = await activity.sign_in()
        except Exception as e:
            print(str(e))
            

3. token = await activity.sign_in() raises an AttributeError AttributeError: 'MessageActivityInput' object has no attribute 'is_targeted'

Expected Behavior

System trys to login the user if he's not signed.

Actual Behavior

AttributeError: 'MessageActivityInput' object has no attribute 'is_targeted' is raised

SDK Version

2.0.0a18

Python Version

3.12, 3.13

Additional Context

No response

[lilyydu]

hi @ameijer552 ,

thanks for filing! We have a PR to update the schema so this bug should disappear upon merge/release
#318