Zabbix

...G...... [ZBX-21456] fixed net.tcp.socket.count and net.udp.socket.count problem on Zabbix agent 2 when IPv6 is disabled

Merge in ZBX/zabbix from feature/ZBX-21456-6.0 to release/6.0

* commit '76d4c38d920d1b24e34e8d88a6069fd5e5cb7e22':
  .......... [ZBX-21456] added changelog
  .......... [ZBX-21456] added changelog
  .......... [ZBX-21456] added changelog
  ...G...... [ZBX-21456] fixed net.udp.socket.count problem on agent2 when ipv6 is disabled
  ...G...... [ZBX-21456] fixed net.tcp.socket.count problem on agent2 when ipv6 is disabled

(cherry picked from commit d83b6e25b1a7b9bc833a2c24264e6e8f2a21db77)