Clarify postgresql.duration.* metrics description

[pierreln-dd]

What does this PR do?

Clarifies that postgresql.duration.* metrics (based on pg_stat_statement) are the values of executed queries

Motivation

Customer feedback

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Add the qa/skip-qa label if the PR doesn't need to be tested during QA.
• If you need to backport this PR to another branch, you can add the backport/<branch-name> label to the PR and it will automatically open a backport PR once this one is merged

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.31%. Comparing base (ee710bb) to head (702c662).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

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[pierreln-dd]

/merge

[dd-devflow-routing-codex]

View all feedbacks in Devflow UI.

2025-11-20 15:31:06 UTC ℹ️ Start processing command /merge

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2025-11-20 15:31:13 UTC ℹ️ MergeQueue: waiting for PR to be ready

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2025-11-20 19:32:14 UTC ⚠️ MergeQueue: This merge request was unqueued

devflow unqueued this merge request: It did not become mergeable within the expected time