[E2E] PROMOTE TO BLOCKING: enable_scanning_from_configuration_spec.rb

What does this MR do?

Promotes the following e2e tests to the blocking bucket:

1. Secure Enable Scanning from UI enable sast from configuration runs sast job when enabled from configuration | Testcase | Spec metrics

This MR was created based on data from reliable e2e test report: #472396 (closed)

(This MR was automatically generated by gitlab_quality-test_tooling at 2024-07-15 02:07:20 UTC)