Log Message:
py-leather: updated to 0.4.0

0.4.0 - October 23, 2023

* feat: :meth:`.Chart.add_line` accepts a `stroke_dasharray argument \ 
<https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/stroke-dasharray>`_.
* feat: Add a ``default_stroke_dasharray`` theme option.
* fix: Apply the ``axis_title_font_size`` and ``tick_font_size`` theme options.

0.3.5 - October 23, 2023

* Leather no longer reconfigures Python warnings globally.
* Add Python 3.11 and 3.12 support.
* Drop Python 3.7 support (end-of-life was June 27, 2023).