Explicitly not update indexes when sync database schemas (#34281)

Fix #34275

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

models/migrations/v1_23/v303.go

@@ -19,5 +19,9 @@ func AddCommentMetaDataColumn(x *xorm.Engine) error {
 		CommentMetaData *CommentMetaData `xorm:"JSON TEXT"` // put all non-index metadata in a single field
 	}
 
-	return x.Sync(new(Comment))
+	_, err := x.SyncWithOptions(xorm.SyncOptions{
+		IgnoreConstrains: true,
+		IgnoreIndices:    true,
+	}, new(Comment))
+	return err
 }