sync rhel update for 4.19+ chainupgrade&cpou steps

Author: jiajliu

ci-operator/step-registry/cucushift/chainupgrade/toimage/cucushift-chainupgrade-toimage-commands.sh

@@ -1147,7 +1147,7 @@ for target in "${TARGET_RELEASES[@]}"; do
     upgrade
     check_upgrade_status
 
-    if [[ $(oc get nodes -l node.openshift.io/os_id=rhel) != "" ]]; then
+    if [[ "${TARGET_MINOR_VERSION}" -lt "19" ]] && [[ $(oc get nodes -l node.openshift.io/os_id=rhel) != "" ]]; then
         echo "Found rhel worker..."
         run_command "oc get node -owide"
         if [[ $(oc get machineconfigpools worker -ojson | jq -r '.spec.paused') == "true" ]]; then

ci-operator/step-registry/cucushift/upgrade/cpou/unpause-worker-mcp/cucushift-upgrade-cpou-unpause-worker-mcp-commands.sh

@@ -90,14 +90,17 @@ for mcp in "${normal_mcp_arr[@]}"
 do
     check_mcp ${mcp} "True"
 done
+current_minor_ver="$(oc get clusterversion --no-headers | awk '{print $2}' | cut -f2 -d.)"
+echo -e "current minor version: ${current_minor_ver} \n"
+
 IFS=" " read -r -a arr <<<"$PAUSED_MCP_NAME"
 for mcp in "${arr[@]}";
 do
     check_mcp $mcp "False"
     printf "\n"
     unpause ${mcp}
     printf "\n"
-    if [[ $(oc get nodes -l node.openshift.io/os_id=rhel) != "" ]]; then
+    if [[ "${current_minor_ver}" -lt "19" ]] && [[ $(oc get nodes -l node.openshift.io/os_id=rhel) != "" ]]; then
         echo "Found rhel worker, this step is supposed to be used in eus upgrade, skipping mcp checking here, need to check it after rhel worker upgraded..."
         run_command "oc get machineconfigpools"
         run_command "oc get node -owide"