Update signals2 from master

cppal-commitbot · cppal-commitbot · commit 75ed6996fbe4 · 2024-10-08T00:26:21.000Z
diff --git a/libs/signals2 b/libs/signals2
@@ -1 +1 @@
-Subproject commit 2d199fc765b13140dea25edcde47f45a386c38b0
+Subproject commit 863140941f809ca2b22a249d9ae0196424ca7636
