## Bug description

*Please describe.*  
*If this affects the front-end, screenshots would be of great help.*  

funnels -> select two steps for the funnel -> historical view

This is because we're not passing in a year to dayjs so it defaults to 2001

<img width="592" alt="Screen Shot 2021-07-14 at 1 39 47 PM" src="https://user-images.githubusercontent.com/25164963/125667575-5f8c2450-5998-4602-8a36-f886c1c786c5.png">


## Expected behavior



## How to reproduce

1.
2.
3.

## Environment

- [ ] PostHog Cloud
- [ ] self-hosted PostHog, version/commit: _please provide_

## Additional context



#### *Thank you* for your bug report – we love squashing them!

ee/clickhouse/queries/funnels/test/test_funnel_trends.py
day_4 = results[3]  
        self.assertEqual(day_4["reached_from_step_count"], 2)
        self.assertEqual(day_4["reached_to_step_count"], 1)
        self.assertEqual(day_4["conversion_rate"], 50)
        self.assertEqual(day_4["is_period_final"], True)
        
        funnel_trends_persons_existent_dropped_off_results = ClickhouseFunnelTrendsPersons(
            Filter({**filter._data, "entrance_period_start": "2021-05-04 00:00:00", "drop_off": True}),
            self.team,
            ClickhouseFunnel,
        ).run()
        self.assertEqual(
            len(funnel_trends_persons_existent_dropped_off_results), 1,
        )
        self.assertEqual(
            [person["distinct_ids"] for person in funnel_trends_persons_existent_dropped_off_results], [["user_two"]],
        )
        
        funnel_trends_persons_existent_dropped_off_results = ClickhouseFunnelTrendsPersons(
            Filter({**filter._data, "entrance_period_start": "2021-05-04 00:00:00", "drop_off": False}),
            self.team,
            ClickhouseFunnel,
        ).run()
        self.assertEqual(
            len(funnel_trends_persons_existent_dropped_off_results), 1,
        )
        self.assertEqual(
            [person["distinct_ids"] for person in funnel_trends_persons_existent_dropped_off_results], [["user_one"]],
        )
    def test_from_second_step(self):