Update config.sh

runner_scripts/root/config.sh

@@ -5,7 +5,7 @@ shopt -s inherit_errexit
 : "${CUSTOM_ENV_AUTH_USER:?"AUTH_USER CI/CD variable has not been set."}"
 : "${CUSTOM_ENV_CI_CONCURRENT_PROJECT_ID:?"CI_CONCURRENT_PROJECT_ID CI/CD variable has not been set."}"
 
-AUTH_USER_WORK=$(runuser "$AUTH_USER" --command "echo \$WORK")
+AUTH_USER_WORK=$(runuser "$CUSTOM_ENV_AUTH_USER" --command "echo \$WORK")
 
 cat << EOS
 {