<!-- Describe your changes in detail -->
send xid as none for external 3ds payments
To implement this **search_filter** feature, you'll need to modify these architectural layers:


**1. External Connector Integration**
   - `crates/hyperswitch_connectors/src/connectors/cybersource/transformers.rs`

**Code Patterns Applied:**
- Extend existing types with new fields (3 changes)
{"pr_number": 7577, "pr_title": "fix(connector): [CYBERSOURCE] send xid as none for external 3ds payments", "merged_at": "2025-03-20T07:56:40Z", "intent": {"feature_type": "search_filter", "action": "add_feature", "entities": ["payment"]}, "hierarchy": {"connectors": ["crates/hyperswitch_connectors/src/connectors/cybersource/transformers.rs"]}, "change_types": {"fields_added": 3}, "has_identifier_data": false, "commits_matched": 0, "match_method": "none"}