Update fiber from master

boost-commitbot · boost-commitbot · commit 5a839fb07a98 · 2024-11-08T12:05:15.000Z
diff --git a/libs/fiber b/libs/fiber
@@ -1 +1 @@
-Subproject commit 88b8304e78dfab4baee5d6beca09938d2826061a
+Subproject commit 7838ab09d700214e3d7dd7104fce241ca7552336
