Ensure branch require code owner reviews

Risk Level: medium
Platform: Github
Spectral Rule ID: GH-HRDS005

REMEDIATION

People with admin or owner permissions can set up a CODEOWNERS file in a repository to define individuals or teams responsible for code in a repository.
To use a CODEOWNERS file, create a file called CODEOWNERS in the root, docs/, or .github/ directory of the repository, in the branch where you'd like to add the code owners.
An example can be found in the references.

Read more:

• https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners