Add missing types

[ueman]

Description

This place was missing the types, so you could actually run into an issue where you pass incompatible types.

You could actually test this by enabling the strong language analyzer options:

analyzer:
  language:
    strict-raw-types: true
    strict-inference: true
    strict-casts: true

But I don't know whether that's something you want to do. I've briefly tried to enable them, and it shows a lot more issues. That's also why I didn't enable them as a test for these changes.

Related Issues

none

Checklist

Before you create this PR confirm that it meets all requirements listed below by checking the relevant checkboxes ([x]).
This will ensure a smooth and quick review process.

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• My PR includes tests for all changed/updated/fixed behaviors.
• All existing and new tests are passing.
• I updated/added relevant documentation (doc comments with ///).
• The analyzer (melos run analyze) does not report any problems on my PR.
• The package compiles with the minimum Flutter version stated in the pubspec.yaml

Breaking Change

Does your PR require plugin users to manually update their apps to accommodate your change?

• Yes, this is a breaking change.
• No, this is not a breaking change.

While technically this is a breaking API change (you could pass an unrelated type), it's not a change in behavior (only passing correct types would make the code work)

[TahaTesser]

LGTM!

[ulusoyca]

👑