style: fix lint

Author: vkarpov15

test/docs/transactions.test.js

@@ -399,7 +399,7 @@ describe('transactions', function() {
           let docs = await Test.aggregate([{ $match: { _id: doc._id } }]);
           assert.equal(docs.length, 1);
 
-          const aggCursor = TestModel.aggregate([{ $match: { _id: doc._id } }]).cursor();
+          const aggCursor = Test.aggregate([{ $match: { _id: doc._id } }]).cursor();
           docs = [await aggCursor.next()];
           assert.equal(docs[0].name, 'test_transactionAsyncLocalStorage');