fix: Update Overrided Methods in Text Input Service

[Akshay-akkay]

For Flutter 3.7.0 (#1741)

[CLAassistant]

All committers have signed the CLA.

[LucasXu0]

Hey, @Akshay-akkay. Thanks for your contribution. We use Flutter 3.3.10 now, so the CI will complain if you override those functions introduced in Flutter 3.7.x.

[Akshay-akkay]

@LucasXu0 Thanks for the information. Should I try to update flutter version in gh workflows or there is some sort of process to be followed before upgrading flutter.

[LucasXu0]

Hey, @Akshay-akkay.

1. Update the gh workflows.
2. Update the documentation on Gitbook. https://appflowy.gitbook.io/docs/essential-documentation/contribute-to-appflowy/software-contributions/environment-setup