Add DB spec patterns the db-patterns anchor

What does this MR do?

When DB specs are modified, we should run the DB-related jobs. This MR adds the DB specs to the db-patterns.

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• [-] Style guides
• [-] Database guides
• [-] Separation of EE specific content