fix: unkown characters in generation streaming

[giladgd]

Description of change

• fix: unkown characters in generation streaming

Fixes #284

Pull-Request Checklist

• Code is up-to-date with the master branch
• npm run format to apply eslint formatting
• npm run test passes with this change
• This pull request links relevant issues as Fixes #0000
• There are new or updated unit tests validating the change
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[github-actions]

🎉 This PR is included in version 3.0.0-beta.42 🎉

The release is available on:

• v3.0.0-beta.42
• npm package (@beta dist-tag)
• GitHub release
• v3.0.0-beta.42

Your semantic-release bot 📦🚀

[github-actions]

🎉 This PR is included in version 3.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release
• v3.0.0

Your semantic-release bot 📦🚀