Update global-jjb to latest

This brings in change to python-tools-install.sh that is needed to
run inside alpine containers.

Signed-off-by: Eric Ball <eball@linuxfoundation.org>
Change-Id: I70d9843a5f6fc8f590850cf8177f27947471063b

diff --git a/global-jjb b/global-jjb
index 99e1a22..e3b47c7 160000 (submodule)
--- a/global-jjb
+++ b/global-jjb
@@ -1 +1 @@
-Subproject commit 99e1a22608c6aa57ea78567683e98fcbcc9eb552
+Subproject commit e3b47c77a181b5f5bd3a79802a46188adb6173ce