Fix workspace migration failure (#36911)

This fixes a regression on nightly introduced in
https://github.com/zed-industries/zed/pull/36714

Release Notes:

- N/A
d43df9e841Max Brunsfeld committed on 8/26/2025, 12:27:52 AM· committed by GitHubparentf8667a8
16 files changedLine totals unavailable