Add words or phrases: Blackbox deactived

## Description

There is a audio file for "Blackbox active" and "Blackbox erase" but not for "Blackbox deactived".
**Please add "Blackbox deactived" for English.**

- Language: `en_US` 
- Phrase: "Blackbox deactived"


## Help make EdgeTX better!



- [x] (optional) I can help reviewing the new sounds once they're generated.