Rust 1.95 (#55104)

Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Closes #ISSUE

Release Notes:

- N/A

crates/multi_buffer/src/multi_buffer.rs

@@ -3575,10 +3575,7 @@ impl MultiBufferSnapshot {
                     continue 'anchors;
                 };
                 cursor.seek_forward(path, Bias::Left);
-                'excerpts: loop {
-                    let Some(excerpt) = cursor.item() else {
-                        break;
-                    };
+                'excerpts: while let Some(excerpt) = cursor.item() {
                     if excerpt.path_key != *path {
                         break;
                     }