[BUG] Cannot send stickers in WebM format.

[Lunsit]

Describe the bug
Cannot send stickers in webp format.

To Reproduce
Steps to reproduce the behavior:

1. Example sticker link: https://t.me/addstickers/Miku_u.
2. Send any of the stickers.

Expected behavior
No error is reported after sending.

Screenshots
ffepeg can convert webp format to GIF

Version information (please complete the following information):

• OS: Ubuntu 20.04.4 LTS
• Detailed Python, EFB and module versions:

  
  EH Forwarder Bot
  Version: 2.1.1
  Python version:
  3.8.10 (default, Mar 15 2022, 12:22:08) 
  [GCC 9.4.0]
  Running on profile "default".

Master channel: Telegram Master (blueset.telegram) 2.2.5.dev4 # Default instance

Slave channel: WeChat Slave (blueset.wechat) 2.0.7 # Default instance

Middleware: Solitaire Middleware (solitaire.MatrixLauMiddleware) 1.3.0 # Default instance

**Additional context**  
The log corresponding to error one.
![image](https://user-images.githubusercontent.com/61680403/167060584-60fd9ac0-15a1-493d-9d3f-2e42c315c0e3.png)
The log corresponding to error two.
![image](https://user-images.githubusercontent.com/61680403/167060604-8876436e-f66c-4645-9026-5834b02d46d3.png)

[blueset]

Upon inspection, this sticker is of WebM VP9 format instead of WebP. As this is a new sticker format added to Telegram, support is not currently available in ETM.