Use `git config --global user.email` for email address in automatic `Co-authored-by` (#32624)

Release Notes:

- Automatic population of `Co-authored-by` now uses `git config --global
user.email`

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Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Conrad <conrad@zed.dev>
7d708c14e4Michael Sloan committed on 6/12/2025, 7:39:08 PM· committed by GitHubparente56a027
24 files changedLine totals unavailable