Add DRA version bump

[ninalee12]

Summary of your changes

Hi Team,

This PR is the first phase of the version-bump automation rollout as mentioned in #mission-control. It introduces a generalized Buildkite pipeline for service teams in the DRA process. The baseline pipeline includes a block step that waits for each team to unblock before polling for DRA artifacts using a buildkite plugin json-watcher-buildkite-plugin for the polling.

Related Issues

• Version Bump Automation Rollout #4024

Checklist

• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary README/documentation (if appropriate)

Introducing a new rule?

• Generate rule metadata using this script
• Add relevant unit tests
• Generate relevant rule templates using this script, and open a PR in elastic/packages/cloud_security_posture

[mergify]

This pull request does not have a backport label. Could you fix it @ninalee12? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-v./d./d./d is the label to automatically backport to the 8./d branch. /d is the digit
• backport-active-all is the label that automatically backports to all active branches.
• backport-active-8 is the label that automatically backports to all active minor branches for the 8 major.
• backport-active-9 is the label that automatically backports to all active minor branches for the 9 major.

[olegsu]

Hey @ninalee12, is this PR ready to be merged?

[ninalee12]

Hey @ninalee12, is this PR ready to be merged?

Hey @olegsu this PR is not yet ready. Could you supply your slack handle that you want to be notified in. I'll update the PR with it and the PR should be ready to go after that.

Also when you get a chance, could you list any dependencies cloudbeat might have in this issue: #4024

Some teams have done so using this format:

Dependencies: elasticsearch,beats