Plugin Support

...G...... [ZBX-24824] improved leadable plugin communications read function

* commit '33887e3bc2069d8d82dd9132da616f7db316d574':
  ...G...... [ZBX-24824] fixed lint issues in plugin/comms/connection.go
  ...G...... [ZBX-24824] improved leadable plugin communications read function

(cherry picked from commit fa24a9a607564ea00a69485ca5d87ba9fdfc5967)