Update deprecated code

[GabryDX]

When executing the command justetf_scraping.load_overview() I get:

FutureWarning: Downcasting behavior in `replace` is deprecated and will be removed in a future version. To retain the old behavior, explicitly call `result.infer_objects(copy=False)`. To opt-in to the future behavior, set `pd.set_option('future.no_silent_downcasting', True)`
  df[column] = df[column].replace({"Yes": True, "No": False}).astype("bool")

Everything works so it is not blocking, but needs to be addressed.