[O11y][CouchDB] Remove forwarded tag from metrics data streams

[harnish-elastic]

• Bug

What does this PR do?

• This PR remove forwarded tag from the metricbeat-based data streams.

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.

Related issues

• Relates [O11y] Remove forwarded tag for metrics data streams #7635

[elasticmachine]

💚 Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Start Time: 2023-09-21T08:36:10.335+0000

• Duration: 16 min 30 sec

Test stats 🧪

Test	Results
Failed	0
Passed	5
Skipped	0
Total	5

🤖 GitHub comments

Expand to view the GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (1/1)	💚
Files	100.0% (1/1)	💚
Classes	100.0% (1/1)	💚
Methods	100.0% (7/7)	💚 4.938
Lines	94.175% (194/206)	👍 14.329
Conditionals	100.0% (0/0)	💚

[aliabbas-elastic]

/test

[milan-elastic]

LGTM!

[ishleenk17]

Looks good!

[elasticmachine]

Package couchdb - 1.0.1 containing this change is available at https://epr.elastic.co/search?package=couchdb