fix(Response): correctly send the response when file doesn't exist while streaming it

[RomainLanz]

Proposed changes

It seems that the correct type for the error variable created inside a stream callback is NodeJS.ErrnoException.

Therefor, this type doesn't have any status property, this means we cannot use it to send back the status.

Types of changes

I have corrected the type in the callback and added a test to ensure no regression and that the change fixed an actual bug (before, the status was always 500).

• Bugfix (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 not work as expected)

Checklist

• I have read the CONTRIBUTING doc
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works.
• I have added necessary documentation (if appropriate)

[thetutlage]

Beautiful :)