zabbix_agentd: Update to 7.0.16 (LTS)

zabbix_agentd: Update to 7.0.16 (LTS)

- Update from version 7.0.11 to 7.0.16
- Update of rootfile not required

Bugs fixed:
ZBX-26080	Fixed old file descriptors being held when external log rotation is used
ZBX-26121	Added default flags to net.dns.get arguments when none are specified
ZBX-26055	Fixed failure to refresh active checks when next refresh was faster than 60 seconds

Full changelogs since 7.0.11:
- https://www.zabbix.com/rn/rn7.0.12
- https://www.zabbix.com/rn/rn7.0.13
- https://www.zabbix.com/rn/rn7.0.14
- https://www.zabbix.com/rn/rn7.0.15
- https://www.zabbix.com/rn/rn7.0.16

Signed-off-by: Robin Roevens <robin.roevens@disroot.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>