http fails to unpack certain tar.gz files

[reegnz]

What steps did you take:

I wanted to vendor a tar.gz file fetched from github:

apiVersion: vendir.k14s.io/v1alpha1
kind: Config
directories:
- path: sponnet
  contents:
  - path: .
    http:
      url: https://github.com/spinnaker/sponnet/archive/refs/tags/v1.26.0.tar.gz
      unpackArchive: true

What happened:
The tar.gz file was not unpacked.

What did you expect:
The tar.gz file should have been unpacked.

Anything else you would like to add:
Originally I experimented with a fix for the issue mentioned in #150.

Environment:

❯ vendir version
vendir version 0.34.3

Succeeded

OS: MacOS Ventura 13.5

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[reegnz]

Opened this issue because I was asked to by @praveenrewar in #150 (comment)

[github-actions]

This issue is being marked as stale due to a long period of inactivity and will be closed in 5 days if there is no response.

[reegnz]

There is an open PR already for this issue, #280 but tests still needs to be extended.