Update variant2 from develop

boost-commitbot · boost-commitbot · commit aa39975e690c · 2026-01-01T20:39:13.000Z
diff --git a/libs/variant2 b/libs/variant2
@@ -1 +1 @@
-Subproject commit 540354878cf216a48bb155e70569d78679118d08
+Subproject commit 4632862a4bc4c9a02a0b204876dd33853708c21f
