Fix socket hang up error during release upload

[danyeaw]

In run https://github.com/gaphor/gaphor/actions/runs/3824238322/jobs/6520647088 we are getting a socket hangup error when trying to upload final release assets from Windows. We have seen this in the past with Linux as well when we were uploading the sdist and wheel.

This PR replaces use of https://github.com/AButler/upload-release-assets with the gh CLI. Others who have seen this error have reported success with this method.

PR Checklist

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PR Type

What kind of change does this PR introduce?

• Bug fix
• Feature
• Chore (refactoring, formatting, local variables, other cleanup)
• Documentation content changes

What is the current behavior?

Intermittent socket hang up errors with CI

Issue Number: N/A

What is the new behavior?

No socket hang up

Does this PR introduce a breaking change?

• Yes
• No

Other information

[amolenaar]

This looks a lot nicer.