chore: update C core again

szhorvat · szhorvat · commit a671530b7287 · 2024-11-05T19:46:59.000Z
diff --git a/vendor/source/igraph b/vendor/source/igraph
@@ -1 +1 @@
-Subproject commit fb81bda143ad35aaa50cbc508f917671402c38f6
+Subproject commit a662f79d46970bbcc2888e69dce5daa3fee8906e
