feat: Add support for payment requests on Android

[AzarouAmine]

Connection with issue(s)

Google has announced a new API to allow usage of Google Pay inside a WebView. This PR adds this functionality to the library.

#2660

To Do

• double check the original issue to confirm it is fully satisfied
• add testing notes and screenshots in PR description to help guide reviewers
• request the "UX" team perform a design review (if/when applicable)

[AzarouAmine]

@pichillilorenzo Please check if I need to make any updates. This feature is working and we are using it right now.

[SherpaMiguel]

I have already reviewed and tested it and it works as expected. Hope it can be merged soon 🤞🏽

[novas1r1]

I also checked with Android 16, Pixel 8a and Flutter 3.35.4 and it worked :)

[SherpaMiguel]

@pichillilorenzo it seems like there are many people waiting for this feature. Could you please check it?

[haitranA]

@pichillilorenzo Could you please check it? or Do you have plan for releasing this feature?

[brennan-smith]

Any update on this?

[arrrrny]

Hey @AzarouAmine! We've applied your Google Pay paymentRequestEnabled setting for Android WebView into the zikzak_inappwebview fork — a community-driven fork with active maintenance. Also bumped androidx.webkit:webkit from 1.13.0 to 1.14.0 to support the required API. Thanks for the contribution! 🚀

https://github.com/arrrrny/zikzak_inappwebview