Try out the new registry

[alexeypilyugin]

What does this PR do?

Trying out the new datadog docker registry

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

[codecov]

Codecov Report

❌ Patch coverage is 90.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 91.00%. Comparing base (eebd0e7) to head (2c3bdbd).
⚠️ Report is 40 commits behind head on master.

Additional details and impacted files

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[AliDatadog]

This image does not exist in this registry because:

• It hasn't been published recently (we could publish it though)
• We added a 14d retention policy because agent-dev images are using a lot of storage.

We can exclude this image from the clean up policy if needed

[AliDatadog]

Same, master-py2-win-servercore hasn't been published recently but we can replicate it

[github-actions]

⚠️ Major version bump
The changelog type changed or removed was used in this Pull Request, so the next release will bump major version. Please make sure this is a breaking change, or use the fixed or added type instead.