Update optional from master

boost-commitbot · boost-commitbot · commit ec8b2737be7d · 2026-02-27T13:27:36.000Z
diff --git a/libs/optional b/libs/optional
@@ -1 +1 @@
-Subproject commit aaabe89a6981bd8bcbd586009ca3a8f37a02ef03
+Subproject commit 8bc4a16933e34c0de04869b587bf8032c2b24b77
