Ensure we are on a supported version before migrating

What does this MR do?

Sets a minimum schema version to the one we shipped with the CE version of 11.11.0.

If using the rake db:migrate command to migrate, it will fail if you are too old of a version.

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content