Bump global-jjb from v0.53.1 to v0.55.0

While v0.53.3 contains fixes for lf-infra-ship-logs macro we want,
we decided to bump right to v0.55.0 while we at it.

Change-Id: Ic2b34beab7b829d55da7fd2f9e23f48447a6de79
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

diff --git a/global-jjb b/global-jjb
index 39abe0d..5fc616e 160000 (submodule)
--- a/global-jjb
+++ b/global-jjb
@@ -1 +1 @@
-Subproject commit 39abe0daab310c07b85f834d81f07c82218ef504
+Subproject commit 5fc616e4b1231808c1f11608608415312b08aa02