Use Blacksmith as macOS CI default - #5019

Bugbot Analysis Progress (5m 53s elapsed)

✅ Gathered PR context (4s)
✅ Completed bug detection (5m 48s)
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Final Result: Bugbot completed review - no issues found! ✅

Request ID: serverGenReqId_3af74d14-7ead-4db9-9b9a-5cbe3c7d06a8