[kubernetes] Add missed ecs fields

[tetianakravchenko]

Signed-off-by: Tetiana Kravchenko tetiana.kravchenko@elastic.co

What does this PR do?

In elastic/beats#31020 were added container fields, those fields should be added in all affected integration packages accordingly.
This PR is similar to the #3056 and #3059

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• 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.

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• Start Time: 2022-04-12T07:16:53.790+0000

• Duration: 47 min 21 sec

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🤖 GitHub comments

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[MichaelKatsoulis]

The new fields are populated only by pod and container metricset(link). They are not needed in state_pod and state_container

[tetianakravchenko]

done 9c5ae4e

[MichaelKatsoulis]

LGTM