Log Message:
Update sysutils/beats to 5.1.2.

Filebeat
- Fix registry migration issue from old states were files were only
  harvested after second restart.

Packetbeat
- Fix error on importing dashboards due to colons in the Cassandra
  dashboard.
- Fix error on importing dashboards due to the wrong type for the
  geo_point fields.

Winlogbeat
- Fix for "The array bounds are invalid" error when reading large
  events.