Support multiple version of WhatsApp cloud APIs

[amit-onappr]

In case if you are onboarding new customers using this library then facebook requires support for latest API version. So at a time, some of the customer may be using old API version while others may be using new api version.

[github-actions]

Hello and welcome! We're glad to see that you've opened your first issue. We appreciate your contribution and would love to hear more about the problem you're experiencing. Our team is actively monitoring this repository and we will do our best to respond to your issue as soon as possible. Thank you for using our project and we look forward to working with you!

[Bindambc]

Hello @amit-onappr , I apologize for the delay in responding to you. This SDK currently only supports version 16 of the WhatsApp API. Version 17 of the API was recently released, and I haven't had the opportunity to implement the changes for the new version yet. However, I expect to be able to do so soon. Please feel free to contribute a pull request if you have already made any updates in this regard. I will keep this issue open so that I can work on this implementation in the near future. Thank you very much for opening this issue, and I will provide updates here as soon as I have any news.