Map Postgres diagnoses to h ealth events

[sethsamuel]

What does this PR do?

Motivation

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

[datadog-datadog-prod-us1]

✨ Fix all issues with BitsAI or with Cursor

⚠️ Warnings

🧪 2 Tests failed

test_can_connect_service_check from test_pg_integration.py     (Fix with Cursor)

'PostgresDiagnose' object has no attribute 'run'

test_state_clears_on_connection_error from test_pg_integration.py     (Fix with Cursor)

'PostgresDiagnose' object has no attribute 'run'

ℹ️ Info

No other issues found (see more)

❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 87.73% (+0.49%)

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[dd-octo-sts]

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