Update libtcod-headless submodule to include pathfinding additions

Advances to 83b3e6ce which adds Dijkstra distance maps, multi-root
Dijkstra, A* heuristic functions, and pathfinding demo.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
John McCardle 2026-04-01 11:27:22 -04:00
commit 916553db26

@ -1 +1 @@
Subproject commit 7e0fef69078abde3d14b5db50a9d7851ab91e732
Subproject commit 83b3e6cec75a3e3200cd0a38f158ea7e7f0323f3