[stable/jenkins] Use imageTag as version in config map (#1333)

* Use imageTag as version in config map

The version should not be hardcoded, instead we should use the version from the image the user is choosing to install.

* Bump minor version

Substituting the Jenkins version in the config xml is a new, backwards compatible feature.

* Update Chart.yaml

stable/jenkins/Chart.yaml

@@ -1,6 +1,6 @@
 name: jenkins
 home: https://jenkins.io/
-version: 0.7.3
+version: 0.7.4
 appVersion: 2.46.3
 description: Open source continuous integration server. It supports multiple SCM tools including CVS, Subversion and Git. It can execute Apache Ant and Apache Maven-based projects as well as arbitrary scripts.
 sources:

stable/jenkins/templates/config.yaml

@@ -9,7 +9,7 @@ data:
     <?xml version='1.0' encoding='UTF-8'?>
     <hudson>
       <disabledAdministrativeMonitors/>
-      <version>2.32.3</version>
+      <version>{{.Values.Master.ImageTag}}</version>
       <numExecutors>0</numExecutors>
       <mode>NORMAL</mode>
       <useSecurity>{{ .Values.Master.UseSecurity }}</useSecurity>