Use correct tag variable for PR name and message

Author: cjllanwarne

.github/workflows/chart_update_on_merge.yml

@@ -126,10 +126,10 @@ jobs:
           exit 0;
         fi
         cd terra-helmfile
-        git checkout -b ${JIRA_ID}-cromwell-update-${HELM_NEW_TAG}
+        git checkout -b ${JIRA_ID}-cromwell-update-$CROMWELL_VERSION
         git config --global user.name "broadbot"
         git config --global user.email "broadbot@broadinstitute.org"
-        git commit -am "${JIRA_ID}: Auto update Cromwell to $HELM_NEW_TAG in workflows-app"
-        git push -u origin ${JIRA_ID}-cromwell-update-${HELM_NEW_TAG}
-        gh pr create --title "${JIRA_ID}: auto update Cromwell version to $HELM_NEW_TAG in workflows-app" --body "${JIRA_ID} helm chart update" --label "automerge"
+        git commit -am "${JIRA_ID}: Auto update Cromwell to $CROMWELL_VERSION in workflows-app"
+        git push -u origin ${JIRA_ID}-cromwell-update-$CROMWELL_VERSION
+        gh pr create --title "${JIRA_ID}: auto update Cromwell version to $CROMWELL_VERSION in workflows-app" --body "${JIRA_ID} helm chart update" --label "automerge"
         cd -