Add Slay the Spire game extension

[Aditi22Bansal]

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[github-actions]

Thank you for creating this issue! 🎉 We'll look into it as soon as possible. In the meantime, please make sure to provide all the necessary details and context. If you have any questions or additional information, feel free to add them here. Your contributions are highly appreciated! 😊

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[Aditi22Bansal]

@Sulagna-Dutta-Roy
Kindly assign me this issue

[Sulagna-Dutta-Roy]

Pull request received since long time. Closing this

[github-actions]

Hello @Aditi22Bansal! Your issue #2089 has been closed. Thank you for your contribution!