update chrome headless mode as gradle properties instead of env variable
update chrome headless mode as gradle properties instead of env variable

xebialabs-community/xlr-servicenow-plugin,xebialabs-community/xlr-servicenow-plugin,xebialabs-community/xlr-servicenow-plugin,xebialabs-community/xlr-servicenow-plugin,xebialabs-community/xlr-servicenow-plugin