diagnostics: Fix panic due non-sorted diagnostics excerpt ranges (#42416)

Fixes ZED-356

Release Notes:

- N/A *or* Added/Fixed/Improved ...

Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
46db753f79Lukas Wirth committed on 11/11/2025, 8:57:11 AM· committed by GitHubparent1a807a7
1 file changedLine totals unavailable