[8.0.0] Metricbeat's Docker Kibana dashboard references fields removed in 8.0.0 due to deprecation

[Nirusu]

The issue:
#27933 (commit: 2c47ac8) breaks the default Kibana dashboards for Metricbeat's Docker module. Running ElasticSearch, Kibana and MetricBeat at version 8.0.0, you end up with a dashboard that looks like this:

Suggested solution:
Given that these field were deprecated and now completely removed, the visualizations in the dashboard need to be replaced with other fields that give a good picture.

[elasticmachine]

Pinging @elastic/integrations (Team:Integrations)

[ChrsMark]

So I guess that #27933 should also had tuned the Dashboards but we missed that? @mtojek could you confirm if that's the case here and then we can work on tuning the dashboards.

[mtojek]

Confirmed, looks like I missed dashboards. I will prepare a renaming fix and park it for 8.0.1.

[ChrsMark]

@mtojek thanks for the fix! Do we also need to tune the package too?