net-mgmt/ping_exporter: Update to 1.0.0

 - Switched to GO_MODULE
 - Fixed "Run as non-root user"
( https://github.com/czerwonk/ping_exporter/issues/56 ) by setuid bit
 - Added ping_exporter_syslog_output_* params to rc-script for syslog
   output tuning

ChangeLog:
https://github.com/czerwonk/ping_exporter/releases/tag/1.0.0

PR:		264048
Approved by:	maintainer timeout > 1 month