chore: update C core

szhorvat · szhorvat · commit 832200204bd1 · 2025-03-23T22:37:36.000Z
diff --git a/vendor/source/igraph b/vendor/source/igraph
@@ -1 +1 @@
-Subproject commit fe6bdb78c4a3269b542c6af7a167b9599f08173d
+Subproject commit fc6860b31887b362e8ddbb07e44e6a12e9cef82d
