Zabbix

...G...... [ZBX-17050] fixed allowed hosts parsing by agent2

* commit '7c0fd068c2ae8d9936cd6e68b0b9f72893da3c74':
  .......... [ZBX-17050] updated allowed peers test cases for DNS names
  ...G...... [ZBX-17050] minor refactoring
  .......... [ZBX-17050] updated allowed peers test cases
  ...G...... [ZBX-17050] fixed ip network check
  .......... [ZBX-17050] added tests for allowedpeers.go
  ...G...... [ZBX-17050] fixed allowed hosts parsing by agent2

(cherry picked from commit ac322115025b33b0ff02e0d3d1e252debe42e155)