Refactor!: Update JJB code to comply with 5.x

Update global-jjb v0.86.0, this updates the minimal
version of JJB to v5.0.2.

Signed-off-by: Anil Belur <abelur@linuxfoundation.org>
Change-Id: I8866f96f34acc38df025225d03f2acf8fc314d4d
diff --git a/jjb/pti-rtp/pti-rtp.yaml b/jjb/pti-rtp/pti-rtp.yaml
index ed339b4..689a16e 100644
--- a/jjb/pti-rtp/pti-rtp.yaml
+++ b/jjb/pti-rtp/pti-rtp.yaml
@@ -13,7 +13,7 @@
     jobs:
       - gerrit-info-yaml-verify
 
-- pti_rtp_common: &pti_rtp_common
+- _pti_rtp_common: &pti_rtp_common
     name: pti-rtp-common
     # git repo
     project: pti/rtp