[Bug]: No Volume Data

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Current Behavior

```
(Pdb) crypto_bars_request = CryptoBarsRequest(symbol_or_symbols=[symbol],timeframe=TimeFrame.Minute, start=current_minute_dt, end=current_minute_dt + dt.timedelta(days=1), limit=1, sort=Sort.ASC,)
(Pdb) self.crypto_client.get_crypto_bars(crypto_bars_request)
{ 'data': { 'BTC/USD': [ { 'close': 44207.2545,
'high': 44207.2545,
'low': 44178.976,
'open': 44192.0,
'symbol': 'BTC/USD',
'timestamp': datetime.datetime(2024, 1, 2, 0, 0, tzinfo=TzInfo(UTC)),
'trade_count': 0.0,
'volume': 0.0,
'vwap': 0.0}]}}

```

Hi I'm noticing that the volume is always zero regardless of the start and end times I provide (happens if I use dt.timedelta(minutes=1) as well - any pointers?

### Expected Behavior

Expecting real volume data

### SDK Version I encountered this issue in

alpaca-py version 0.37.0

### Steps To Reproduce

```markdown
crypto_bars_request = CryptoBarsRequest(symbol_or_symbols=[symbol],timeframe=TimeFrame.Minute, start=current_minute_dt, end=current_minute_dt + dt.timedelta(days=1), limit=1, sort=Sort.ASC,)

self.crypto_client.get_crypto_bars(crypto_bars_request)
```

### Filled out the Steps to Reproduce section?

- [x] I have entered valid steps to reproduce my issue or have attached a minimally reproducible case in code that shows my issue happening; and understand that without this my issue will be flagged as invalid and closed after 30 days.

### Anything else?

_No response_