fix: define excplicit fields to avoid columns duplication

Author: mbani01

services/apps/snowflake_connectors/src/integrations/tnc/courses/buildSourceQuery.ts

@@ -34,7 +34,21 @@ export const buildSourceQuery = (sinceTimestamp?: string): string => {
   let select = `
   SELECT
     ca.*,
-    co.*,
+    co.title,
+    co.course_group_id,
+    co.client_id,
+    co.sku,
+    co.status,
+    co.slug,
+    co.created_ts,
+    co.start_date,
+    co.end_date,
+    co.is_training,
+    co.is_certification,
+    co.instruction_type,
+    co.product_type,
+    co.location,
+    co.is_test_or_archived,
     tu.user_email,
     tu.lfid,
     tu.learner_name,