Fix: Skip adding extra empty chunk for empty streams in TrailingHeadersWrapperStream

[muhammad-othman]

Description

Requesting a release of #4013 since the proper devConfig was missing.

Motivation and Context

#4013

Testing

DRY_RUN-2cca33f8-61ed-428f-9c9f-9127a43f024f

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project
• My change requires a change to the documentation
• I have updated the documentation accordingly
• I have read the README document
• I have added tests to cover my changes
• All new and existing tests passed

License

• I confirm that this pull request can be released under the Apache 2 license