Configure SAST in `.gitlab-ci.yml`, creating this file if it does not already exist

4 jobs for set-sast-config-2 in 43 seconds
Status Name Job ID Coverage
  Test
passed eslint-sast #695500

00:00:06

passed jest #695503

00:00:40

passed nodejs-scan-sast #695501

00:00:31

passed semgrep-sast #695502

00:00:11