Create CODEOWNERS file

[security-dbtlabs]

This PR creates a CODEOWNERS file with a global codeowner to act as a fallback owner.

If this repository is no longer in use and can be archived or deleted please let us know.

Please reach out to Security Engineering if you have any questions.

[cla-bot]

Thanks for your pull request, and welcome to our community! We require contributors to sign our Contributor License Agreement and we don't seem to have your signature on file. Check out this article for more information on why we have a CLA.

In order for us to review and merge your code, please submit the Individual Contributor License Agreement form attached above above. If you have questions about the CLA, or if you believe you've received this message in error, please reach out through a comment on this PR.

CLA has not been signed by users: @security-dbtlabs

[github-actions]

Thank you for your pull request! We could not find a changelog entry for this change. For details on how to document a change, see the contributing guide.

[cholesterol]

LGTM

[Cr0n1c]

shutting this one down and recreating from my account so CLA-signed will pass