Add a new dataset to include both metrics and logs for the active integrations and agent charts

[amitkanfer]

What does this PR do?

Fixing couple of charts in the agent integration

Added a new dataset to include both metrics and logs data streams for the relevant charts

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.

Author's Checklist

• [ ]

How to test this PR locally

Related issues

Screenshots

[joshdover]

We need to make the same fixes to the metric viz's at the top of this dashboard as well as the "Total Ingest rates" at the bottom. I think it makes sense to do all of those in a single PR so the dashboard is coherent and adds up correctly.

[elasticmachine]

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• Start Time: 2023-09-06T11:51:52.540+0000

• Duration: 13 min 28 sec

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Test	Results
Failed	0
Passed	37
Skipped	0
Total	37

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (0/0)	💚
Files	100.0% (0/0)	💚
Classes	100.0% (0/0)	💚
Methods	33.333% (25/75)	👎 -66.667
Lines	100.0% (0/0)	💚
Conditionals	100.0% (0/0)	💚

[joshdover]

LGTM

[elasticmachine]

Package elastic_agent - 1.12.1 containing this change is available at https://epr.elastic.co/search?package=elastic_agent