* upgrade yfinance to 0.2.4
* fix some tests failing bc yfinance new date format
* fix remaining tests
* fix tests
* rewrite failing test
* black
* rerecord test
* fix get_1y_sp500 test
* missing import here
Co-authored-by: Henrique Joaquim <h.joaquim@campus.fct.unl.pt>
Co-authored-by: James Maslek <jmaslek11@gmail.com>