matplotlib/matplotlib: REL: v3.4.3

This is the third bugfix release of the 3.4.x series. This release contains several critical bug-fixes: Clarify deprecation of Axes.figbox Disable MultiCursor widget on Axes subplots which it is not tracking Don't simplify path in LineCollection.get_segments Fix DPI in subfigures, affecting tick spacing, and scatter marker size Fix broken EPS output when using Type 42 STIX fonts Fix change in tick behaviour when calling Axes.clear Fix class docstrings for Norms created from Scales Fix compatibility with NumPy 1.21.0 Fix crash on broken TrueType fonts Fix incorrect hits from Path.intersects_path Fix leak if affine_transform is passed invalid vertices Fix legends of stackplot with edgecolors='face' Fix plot directive when building in parallel Fix supxlabel and supylabel behaviour in constrained layout Fix tests with latest Inkscape and Ghostscript Improve DateFormatter styling for month names when usetex=True Re-disable autoscaling after interactive zoom Work around bug in Pillow 8.3.