Add "def common" to getArtifactoryHelmChartRepoByName method for Artifactory.groovy
Related-prod: https://mirantis.jira.com/browse/PROD-31524

Change-Id: If9f049a8b2563820289d91b8e9e961475bd8f08d
diff --git a/src/com/mirantis/mk/Artifactory.groovy b/src/com/mirantis/mk/Artifactory.groovy
index bb7caf3..84eb143 100644
--- a/src/com/mirantis/mk/Artifactory.groovy
+++ b/src/com/mirantis/mk/Artifactory.groovy
@@ -404,6 +404,7 @@
  */
 def getArtifactoryHelmChartRepoByName(art, repoName){
     def res
+    def common = new com.mirantis.mk.Common()
     try {
         res = restGet(art, "/repositories/${repoName}")
     } catch (IOException e) {
@@ -460,7 +461,7 @@
                 "files": [
                    {
                        "pattern": "${chartPattern}",
-                       "target": "${repoName}"
+                       "target": "${repoName}/"
                     }
                 ]
             }"""