Throw error when use COLLATE in LEFT JOIN

[LyzSg]

Describe the bug
When I parse the following SQL witch use COLLATE utf8mb4_general_ci , it will throw an error：

[SyntaxError]: Expected "#", "--", "/*", ";", "FOR", "GO", "INTERSECT", "INTO", "LIMIT", "LOCK", "MINUS", "ORDER", "UNION", "WINDOW", [ \t\n\r], [A-Za-z0-9_$\x80-�], or end of input but "." found.

Database Engine
MySQL

To Reproduce
-the SQL that be parsed

const { Parser } = require('node-sql-parser');
const parser = new Parser();
const sql = `
SELECT users.id FROM users
LEFT JOIN orders ON users.id COLLATE utf8mb4_general_ci = orders.user_id;
`;
const ast = parser.astify(sql);

-the node-sql-parser version
5.3.5
-the node version

Expected behavior
This is a valid SQL statement and should be parsed correctly.