add package octave_tar and octave_zstd

[CNOCTAVE]

No description provided.

[siko1056]

Hello @CNOCTAVE , Thank you for contributing two new packages 🎉 Please let us stay with this pull-request (PR) and I will help you to publish your two new packages. Let me take a look what the CI/CD pipeline complains about.

[siko1056]

Congratulations @CNOCTAVE , the tests have passed and there was a minor confusion about the CI/CD pipeline I created.

The YAML checks only the package description for line length < 80.　All other fields (urls, etc.) may exceed 80 characters for technical reasons.

Again many thanks for your contribution and looking forward to use the zstd and tar compression offered in your packages.

[siko1056]

@CNOCTAVE I invited you to the gnu-octave GitHub organization, so you can approve the runs of the CI/CD pipeline yourself for updates or further releases. No need to wait for me or anyone.