Improvements to the code scanning and GitHub Advanced Security APIs

We've shipped a couple of changes to our APIs:

• The code scanning API now returns the CodeQL query version used for an analysis. This can be used to reproduce results or confirm that an analysis used the latest query.
• Admin users can now use the REST API to enable or disable GitHub Advanced Security for repositories using the security_and_analysis object on repos/:org/:repo. In addition, admin users can check whether Advanced Security is currently enabled for a repository by using a GET /repos/{owner}/{repo} request. These changes help you manage Advanced Security repository access at scale. For more information, see the repos REST API documentation.