Uncaught error health event for DBMAsyncJob

[sethsamuel]

What does this PR do?

Submits a health event for all uncaught exceptions during the execution of DBMAsyncJob. These errors are not for presentation to users but will allow us to capture and fix unknown problems proactively.

Motivation

Other teams have added similar functionality and discovered a large number of bugs to fix. The submitted fields are intentionally small to avoid leaking any sensitive information.

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-official]

⚠️ Tests

⚠️ Warnings

🧪 1 Test failed

test_proxy_env_vars_skip from test_proxy.py (Datadog)

HTTPConnectionPool(host='www.google.com', port=80): Read timed out. (read timeout=10.0)

ℹ️ Info

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 677915b | Docs | Was this helpful? Give us feedback!}

[codecov]

Codecov Report

❌ Patch coverage is 88.88889% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.12%. Comparing base (daccf8e) to head (677915b).
⚠️ Report is 20 commits behind head on master.

Additional details and impacted files

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[eric-weaver]

Will need a rebase + fix