[PATCH] Fix drawing of icons for non-root wxTreeCtrl items
Fix y coordinate value passed to wxDC::DrawBitmap() by restoring the
parentheses accidentally removed in
6dd4e73ea3 (Add wxDrawImageBitmap()
helper and use it in wx{List,Tree}Ctrl, 2022-10-25).
(cherry picked from commit
2a13fd238ea499a3e4b089f3ca3a327e94ddb4d9)
See #23255.
Gbp-Pq: Name fix-drawing-icons-wxtreectrl.patch