Do not drop other servers' data on semantic token refresh (#61795)

Closes https://github.com/zed-industries/zed/issues/60825

Release Notes:

- Fixed semantic tokens overly invalidated on
`workspace/semanticTokens/refresh`
410a8a06edKirill Bulatov committed on 7/30/2026, 8:36:31 AM· committed by GitHubparent200fb85
7 files changedLine totals unavailable