fix: Skip fulltext indexes during sync (#24728)

These are not managed by framework's migration system so we shouldn't
delete them.

frappe/database/mariadb/database.py

@@ -383,6 +383,7 @@ class MariaDBDatabase(MariaDBConnectionUtil, MariaDBExceptionUtil, Database):
 				WHERE Column_name = "{fieldname}"
 					AND Seq_in_index = 1
 					AND Non_unique={int(not unique)}
+					AND Index_type != 'FULLTEXT'
 				""",
 			as_dict=True,
 		)