Log Message:
Update sysutils/beats to 5.6.2.

=== Beats version 5.6.0

==== Breaking changes

Affecting all Beats
- The _all.norms setting in the Elasticsearch template is no longer
  disabled.

==== Bugfixes

Filebeat
- Fix issue where the `fileset.module` could have the wrong value.

Packetbeat
- Update flow timestamp on each packet being received.

Metricbeat
- Fix a debug statement that said a module wrapper had stopped when it
  hadn't.
- Use MemAvailable value from /proc/meminfo on Linux 3.14.
- Fix panic when events were dropped by filters.

==== Added

Affecting all Beats
- Add option to the import_dashboards script to load the dashboards via
  Kibana API.

Filebeat
- Add support for loading Xpack Machine Learning configurations from the
  modules, and added sample configurations for the Nginx module.
- Add ability to parse nginx logs exposing the X-Forwarded-For header
  instead of the remote address.

Metricbeat
- Add `filesystem.ignore_types` to system module for ignoring filesystem
  types.

==== Deprecated

Affecting all Beats
- Loading more than one output is deprecated and will be removed in 6.0.