Pull in latest global-jjb for maven-merge job fix

Pulls in patch https://gerrit.linuxfoundation.org/infra/8623

Change-Id: Ibb52446fbba51dbb4ff9d1523d874a23cb2a7f2b
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>

diff --git a/jjb/global-jjb b/jjb/global-jjb
index a5a5237ab810ab8ad4ff61731f9f8bdc1e1e342e..86f57f37d2af3532edac220ebb0d9bd10d131a8a 160000 (submodule)
--- a/jjb/global-jjb
+++ b/jjb/global-jjb
@@ -1 +1 @@
-Subproject commit a5a5237ab810ab8ad4ff61731f9f8bdc1e1e342e
+Subproject commit 86f57f37d2af3532edac220ebb0d9bd10d131a8a