feat(postgres): add support for lock_timeout [sequelize#15345]

please see sequelize#15345.

src/dialects/postgres/connection-manager.ts

@@ -93,6 +93,8 @@ export class PostgresConnectionManager extends AbstractConnectionManager<PgConne
         'query_timeout',
         // Terminate any session with an open transaction that has been idle for longer than the specified duration in milliseconds. Added in pg v7.17.0 only supported in postgres >= 10
         'idle_in_transaction_session_timeout',
+        // Maximum wait time for lock requests in milliseconds. Added in pg v8.8.0.
+        'lock_timeout',
         // Postgres allows additional session variables to be configured in the connection string in the `options` param.
         // see [https://www.postgresql.org/docs/14/libpq-connect.html#LIBPQ-CONNECT-OPTIONS]
         'options',