[Couchbase] TSDB enablement for couchbase

[agithomas]

• Enhancement

What does this PR do?

Added TSDB related changes for Couchbase package

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.

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• Start Time: 2023-09-08T08:54:52.780+0000

• Duration: 26 min 44 sec

Test stats 🧪

Test	Results
Failed	0
Passed	45
Skipped	0
Total	45

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (10/10)	💚
Files	100.0% (10/10)	💚
Classes	100.0% (10/10)	💚
Methods	100.0% (72/72)	💚 2.19
Lines	100.0% (1076/1076)	💚 7.932
Conditionals	100.0% (0/0)	💚

[agithomas]

@lalit-satapathy , can i have your approval for this PR ?

[lalit-satapathy]

LGTM

[elasticmachine]

Package couchbase - 1.3.0 containing this change is available at https://epr.elastic.co/search?package=couchbase