Updating Slack Media XML

[bilal.habib]

Hi trying to use the latest Zabbix Slack XML from https://git.zabbix.com/projects/ZBX/...edia_slack.xml because we have an issue where you click open in Zabbix from slack but then you get a 404 from the web server. When importing the media type get the following error

"Details Import failed

• Invalid tag "/zabbix_export/version": unsupported version number."

Help is appreciated

Thanks