Resolve "Upgrading CTA Catalogue version to 15.0"

Summary

This brings the CTA Catalogue schema version 15.0 to the CTA project.

Additional Required Actions

• Requires manual tests in pre-production: YES
  • Yes, when migrating from catalogue version 14.0 to 15.0.

• Requires a documentation update: NO
  • Each development ticket that changes the schema should answer this question separately.

References

Closes #801 (closed)