Support Image/webp

[renatovico]

Describe the bug
When receive a image/webp (sticker eg) the download medias doesn't work

To Reproduce

1. Send a sticker image
2. Try download :)

Expected behavior
Download happened

Additional context

I Made a ugly monkey patch

WhatsappSdk::Resource::MediaTypes::IMAGE_TYPES = WhatsappSdk::Resource::MediaTypes::IMAGE_TYPES.dup
WhatsappSdk::Resource::MediaTypes::IMAGE_TYPES.push("image/webp")
WhatsappSdk::Resource::MediaTypes::IMAGE_TYPES.freeze


WhatsappSdk::Resource::MediaTypes::SUPPORTED_MEDIA_TYPES = WhatsappSdk::Resource::MediaTypes::SUPPORTED_MEDIA_TYPES.dup
WhatsappSdk::Resource::MediaTypes::SUPPORTED_MEDIA_TYPES.push("image/webp")
WhatsappSdk::Resource::MediaTypes::SUPPORTED_MEDIA_TYPES.freeze

and all worked :)

[ignacio-chiazzo]

Hi! Thanks for reporting. We definitely need to add support for webp for stickers.

It's in the Whatsapp documentation too.

Do you want to open a PR for that? We need:

• Add image/webp to https://github.com/ignacio-chiazzo/ruby_whatsapp_sdk/blob/main/lib/whatsapp_sdk/resource/media_types.rb under a new variable STICKERS_MEDIA.
• Add an entry on CHANGELOG.md https://github.com/ignacio-chiazzo/ruby_whatsapp_sdk/blob/0cb4187c8530f9d6a85f8dac79f3617434145b43/CHANGELOG.md (you can include your name if you want)

If not, I can write it. Thanks for reporting the issue!

[renatovico]

of course i do!