[DOCS] update env sample for client about whisper

[github-actions]

It's great having you contribute to this project by creating an issue

Make sure you are assigned to this before you work on it and you read the Contributing.md file, Thank you! Welcome to the community 🤓

[anevski-stefan]

@Dun-sin can i work on this issue?

[avibiradar100]

Hey @Dun-sin could you please assign me to this issue

[Dun-sin]

Hey @Dun-sin could you please assign me to this issue

nope, this is a good first issue

[KshitizRana]

May I work on this issue please assign this to me ?

[Aditya7pandey]

May I work on this issue

[Dun-sin]

May I work on this issue

Sure, thanks for wanting to contribute. Make sure to read the issue description carefully and ask if you have questions. Follow the rules here, or your PR won't be accepted and will be closed. Good luck!