ci: Create releases with the Zed Zippy identity (#55649)

Just a small QoL, the change here will make it so that under
https://github.com/zed-industries/zed/releases/tag/v1.0.1 the releases
will show as created by zed-zippy and not github-actions.

Release Notes:

- N/A
fac532153eFinn Evers committed on 5/4/2026, 4:49:23 PM· committed by GitHubparentb5abd9d
2 files changedLine totals unavailable