fix: does not emit tarball stream open when file not found

[snetty]

Bug:

The following has been addressed in the PR:

• S3 proxying isn't working out of the box, there is a bugfix on verdaccio only repo??
• Updated tests

I've updated the tests and applied the fix mentioned in the above issue, but embarrassingly I don't know how to actually run this locally to be able to do an end to end test. I don't have much experience with NodeJs.

If somebody can advise, then I'll be happy to do further testing.