Changes:
- Updated the contact source used for contacts created from workshop
requests
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Bug Fixes**
* Workshop requests are now correctly identified as “Website - Workshop
request” in CRM records, improving source tracking and reporting.
* Workshop request contacts are treated as form-based, ensuring the most
recent campaign member status is set to **Registered**.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->