- Update to 3.9.0
## Plotting and Annotation improvements
* Axes.inset_axes is no longer experimental
* Legend support for Boxplot
* Percent sign in pie labels auto-escaped with usetex=True
* hatch parameter for stackplot
* Add option to plot only one half of violin plot
* axhline and axhspan on polar axes
* Subplot titles can now be automatically aligned
* axisartist can now be used together with standard Formatters
* Toggle minorticks on Axis
* StrMethodFormatter now respects axes.unicode_minus
## Figure, Axes, and Legend Layout
* Subfigures now have controllable zorders
* Getters for xmargin, ymargin and zmargin
## Mathtext improvements
* mathtext documentation improvements
* mathtext spacing corrections
## Widget Improvements
* Check and Radio Button widgets support clearing
## 3D plotting improvements
* Setting 3D axis limits now set the limits exactly
## Other improvements
* New BackendRegistry for plotting backends
* Add widths, heights and angles setter to EllipseCollection
* image.interpolation_stage rcParam
* Arrow patch position is now modifiable
* NonUniformImage now has mouseover support
- Add matplotlib-meson-options-opensuse.patch