Fix realtime unittest

[mlouielu]

Fix realtime unittest.

Over the past seven years, the price of 2330 has increased from 215 to 850. This error from the unit test is quite humorous:

>       self.assertEqual(
            s["realtime"]["best_bid_price"],
            ["214.00", "213.50", "213.00", "212.50", "212.00"],
        )
E       AssertionError: Lists differ: ['848.0000', '847.0000', '846.0000', '845.0000', '844.0000'] != ['214.00', '213.50', '213.00', '212.50', '212.00']

I hope everyone earned money from the stock market.