OZG-4453 fix jenkinsfile rollout step

Jenkinsfile

@@ -276,7 +276,7 @@ Void setNewOperatorVersion(String environment) {
 }
 
 Void updateKeycloakOperatorVersions(String environment){
-    def valuesFile = getApplicationValues(environment, KEYCLOAK_OPERATOR_NAME)
+    def envFile = getApplicationValues(environment, KEYCLOAK_OPERATOR_NAME)
     def envVersions = readYaml file: envFile
 
     envVersions.ozgcloud_keycloak_operator.image.tag = IMAGE_TAG
@@ -286,7 +286,7 @@ Void updateKeycloakOperatorVersions(String environment){
 }
 
 Void updateElasticsearchOperatorVersions(String environment){
-    def valuesFile = getApplicationValues(environment, ELASTICSEARCH_OPERATOR_NAME)
+    def envFile = getApplicationValues(environment, ELASTICSEARCH_OPERATOR_NAME)
     def envVersions = readYaml file: envFile
 
     envVersions.ozgcloud_elasticsearch_operator.image.tag = IMAGE_TAG