fix config error in e2e upgrade test

Signed-off-by: panyintian.fu <panyintian.fu@daocloud.io>

hack/run-nightly-cluster-e2e.sh

@@ -60,8 +60,7 @@ cp -f "${SOURCE_CONFIG_PATH}"/vars-conf-cm.yml  "${dest_config_path}"
 cp -f "${SOURCE_CONFIG_PATH}"/kubeanCluster.yml "${dest_config_path}"
 cp -f "${SOURCE_CONFIG_PATH}"/kubeanClusterOps.yml  "${dest_config_path}"
 
-# set vars-conf-cm.yml
-sed -i "s/v1.29.5/v1.28.9/"  "${dest_config_path}"/vars-conf-cm.yml
+
 
 # set hosts-conf-cm.yml
 sed -i '/ansible_connection/d' "${dest_config_path}"/hosts-conf-cm.yml
@@ -139,6 +138,10 @@ sshpass -p "${AMD_ROOT_PASSWORD}" scp  -o StrictHostKeyChecking=no "${REPO_ROOT}
 dest_config_path="${REPO_ROOT}"/test/kubean_sonobouy_nightlye2e/e2e-install-cluster-sonobouy/
 func_prepare_config_yaml "${SOURCE_CONFIG_PATH}"  "${dest_config_path}"
 CLUSTER_OPERATION_NAME1="cluster1-install-"`date "+%H-%M-%S"`
+
+# set vars-conf-cm.yml
+sed -i "s/v1.29.5/v1.28.9/"  "${dest_config_path}"/vars-conf-cm.yml
+
 sed -i "s/e2e-cluster1-install/${CLUSTER_OPERATION_NAME1}/"  "${dest_config_path}"/kubeanClusterOps.yml