Disable SAST and SD downstream QA tests
What does this MR do?
Replaces the SAST and SD QA jobs with stubs, as they're no longer needed. This will eliminate the noise in the s_secure-alerts Slack channel.
Replaces the SAST and SD QA jobs with stubs, as they're no longer needed. This will eliminate the noise in the s_secure-alerts Slack channel.