.......PS. [ZBXNEXT-8567] added asynchronous DNS resolving for async SNMP and Zabbix agent pollers
Merge in ZBX/zabbix from feature/ZBXNEXT-8620-6.5 to master
* commit 'ae23f5ca4fe6fb4eaba3b0920841eb458bbea7b1':
.......PS. [ZBXNEXT-8620] added ChangeLog entry
.......PS. [ZBXNEXT-8620] fixed DNS not being resolved for non walk snmp items
.......PS. [ZBXNEXT-8567] avoid DNS resolving for IP address
.......PS. [ZBXNEXT-8567] avoid initializing DNS for HTTP agent poller
.......PS. [ZBXNEXT-8567] improved async poller cleanup
.......PS. [ZBXNEXT-8567] fixed build when libevent is not available
.......PS. [ZBXNEXT-8567] added asynchronous DNS resolving for async SNMP and Zabbix agent pollers
.......PS. [ZBXNEXT-8567] added asynchronous DNS resolving for async SNMP and Zabbix agent pollers
