Zabbix

..F....... [DEV-4456] added URL schema restrictions to media type authentication OAuth redirect URLs

Merge in ZBX/zabbix from feature/DEV-4456-7.4 to release/7.4

* commit '24684eea61d9d754308e83f6583995056c2fddca':
  ..F....... [DEV-4456] improved curl message
  ..F....... [DEV-4456] fixed syntax error in comment
  ..F....... [DEV-4456] simplified code; removed unused variable
  ..F....... [DEV-4456] all error messages marked as technical; added follow location to curl init;
  ..F....... [DEV-4456] additional improvements in curl check
  ..F....... [DEV-4456] added curl schema restrictions; updated curl status check to include minimal curl version