[TRIGGER] Trengo - VOICE_CALL_RECORDED

[SarunasGr]

Add a new trigger for Trengo - VOICE_CALL_RECORDED
Documentation: https://developers.trengo.com/docs/payload#:~:text=Duration%20in%20seconds-,VOICE_CALL_RECORDED,-Param

There's phone call started, ended and missed, however there's no option for phone call recorded. This could improve this source significantly