Introduce `BulkInsertSafe` mixin for safe bulk-inserts
What does this MR do?
Closes #196169 (closed)
Does this MR meet the acceptance criteria?
- [-] Changelog entry
- [-] Documentation (if required)
- Code review guidelines
- [-] Merge request performance guidelines
- Style guides
- [-] Database guides We'll update these as part of #196844 (closed)
- [-] Separation of EE specific content
Availability and Testing
Will be available to every developer as an AR model mixin. We will test this as part of #196844 (closed)