OZG-6923 update imageTag/helmVersion in jenkinsfile

Jenkinsfile

@@ -329,7 +329,7 @@ Void deployHelmChart(String helmChartVersion, String app ) {
     }
 }
 
-def validateBranchName(branchName) {
+String validateBranchName(branchName) {
     int maxLength = 30
     if (branchName.length() > maxLength) {
         String originalBranchName = branchName
@@ -343,13 +343,13 @@ def validateBranchName(branchName) {
 String buildVersionName() {
 
     if (isReleaseBranch()) {
-        return getRootPomVersion(pomFile)
+        return getRootPomVersion()
     }
     if (isBarrierefreiheitBranch()) {
-        return "${getRootPomVersion(pomFile)}-barrierefreiheit${validateBranchName(env.BRANCH_NAME)}${getCommitHash()}".replaceAll("_", "-")
+        return "${getRootPomVersion()}-barrierefreiheit${validateBranchName(env.BRANCH_NAME)}${getCommitHash()}".replaceAll("_", "-")
     }
 
-    return "${getRootPomVersion(pomFile)}-${validateBranchName(env.BRANCH_NAME)}${getCommitHash()}".replaceAll("_", "-")
+    return "${getRootPomVersion()}-${validateBranchName(env.BRANCH_NAME)}${getCommitHash()}".replaceAll("_", "-")
 }
 
 Void tagAndPushDockerImage(String newTag){