[FR] Allow change fetch timeout

Is your feature request related to a problem? Please describe.

I can't send large video file, because I get timeout error.

Describe the solution you'd like

Allow to developer set timeout for query in method sendVideo("chatId", {timeout: 99999}) or in options new Telegraf({timeout: 999999})

Describe alternatives you've considered

Allow disabling timeout as well

Additional context

https://github.com/telegraf/telegraf/blob/v4/src/core/network/client.ts#L365-L378