Deploy to rails in both ee and core

What does this MR do?

When creating the MR to add a newly tagged version to Rails, copy the schema files to lib/gitlab/ci/parsers/security/validators/schemas in addition to the existing EE location.

Related issue: gitlab-org/gitlab#347093 (closed)

Availability and Testing

• Review and add/update tests for this feature/bug
  • MR created: gitlab-org/gitlab!79395 (closed)