release v1.22.0-rc.3

[fanny-jiang]

What does this PR do?

A brief description of the change being made with this pull request.

Motivation

What inspired you to submit this pull request?

Additional Notes

Anything else we should know when reviewing?

Minimum Agent Versions

Are there minimum versions of the Datadog Agent and/or Cluster Agent required?

• Agent: vX.Y.Z
• Cluster Agent: vX.Y.Z

Describe your test plan

Write there any instructions and details you may have to test your PR.

Checklist

• PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
• PR has a milestone or the qa/skip-qa label
• All commits are signed (see: signing commits)

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 37.28%. Comparing base (5bf1cba) to head (32e4e6d).

Additional details and impacted files

@@           Coverage Diff           @@
##            v1.22    #2477   +/-   ##
=======================================
  Coverage   37.28%   37.28%           
=======================================
  Files         290      290           
  Lines       24723    24723           
=======================================
  Hits         9219     9219           
  Misses      14789    14789           
  Partials      715      715           

Flag	Coverage Δ
unittests	37.28% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5bf1cba...32e4e6d. Read the comment docs.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.