Installer and pipelines updates for Rel NINE

Change-Id: I86786dc85eda0f717dac75049f7136bc668449d7
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/docker/mk/Makefile.include b/docker/mk/Makefile.include
index e1a6aff..4105295 100644
--- a/docker/mk/Makefile.include
+++ b/docker/mk/Makefile.include
@@ -22,7 +22,7 @@
 TAG ?= 6
 
 REPOSITORY_BASE ?= http://osm-download.etsi.org/repository/osm/debian
-RELEASE         ?= ReleaseEIGHT-daily
+RELEASE         ?= ReleaseNINE-daily
 REPOSITORY_KEY  ?= OSM%20ETSI%20Release%20Key.gpg
 REPOSITORY      ?= testing
 NO_CACHE        ?= --no-cache