[Bug] `stocks/ta/fib` - Error plotting fib: 'datetime.datetime' object has no attribute 'to_pydatetime'

[deeleeramone]

Recreate this with:

/stocks/load qqq/ta/fib -p 30 --start 2023-03-15 --end 2023-04-21

This function also creates a deprecation warning:

custom_indicators_model.py:54: FutureWarning:

Passing method to DatetimeIndex.get_loc is deprecated and will raise in a future version. Use index.get_indexer([item], method=...) instead.