[OOM] Update release process

* snapshot release at every merges
* allow to trigger release when release-helm is set in a comment

Issue-ID: OOM-1
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I64b61643b6f4a92d25d60b96e4f097506eea1878
diff --git a/jjb/oom/oom-helm.yaml b/jjb/oom/oom-helm.yaml
index dc2a206..7458a29 100644
--- a/jjb/oom/oom-helm.yaml
+++ b/jjb/oom/oom-helm.yaml
@@ -42,6 +42,7 @@
           build-timeout: 480
       - "{project-name}-{stream}-merge-helm":
           build_script: "{oom_build_script}"
+          post_build_script: !include-raw-escape: shell/publish_helm_charts.sh
           files: "**"
           build-timeout: 480
       - "{project-name}-{stream}-release-helm":