Bump matplotlib from 3.3.0 to 3.4.1

[dependabot]

Bumps matplotlib from 3.3.0 to 3.4.1.

Release notes

Sourced from matplotlib's releases.

REL: v3.4.1

This is the first bugfix release of the 3.4.x series.

This release contains several critical bug-fixes:

• fix errorbar when specifying fillstyle
• fix Inkscape cleanup at exit on Windows for tests
• fix legends of colour-mapped scatter plots
• fix positioning of annotation fancy arrows
• fix size and color rendering for 3D scatter plots
• fix suptitle manual positioning when using constrained layout
• respect antialiasing settings in cairo backends as well

REL: v3.4.0

Highlights of this release include:

• Figure and Axes creation / management
  • New subfigure functionality
  • Single-line string notation for subplot_mosaic
  • Changes to behavior of Axes creation methods (gca, add_axes, add_subplot)
  • add_subplot/add_axes gained an axes_class parameter
  • Subplot and subplot2grid can now work with constrained layout
• Plotting methods
  • axline supports transform parameter
  • New automatic labeling for bar charts
  • A list of hatches can be specified to bar and barh
  • Setting BarContainer orientation
  • Contour plots now default to using ScalarFormatter
  • Axes.errorbar cycles non-color properties correctly
  • errorbar errorevery parameter matches markevery
  • hexbin supports data reference for C parameter
  • Support callable for formatting of Sankey labels
  • Axes.spines access shortcuts
  • New stairs method and StepPatch artist
  • Added orientation parameter for stem plots
  • Angles on Bracket arrow styles
  • TickedStroke patheffect
• Colors and colormaps
  • Collection color specification and mapping
  • Transparency (alpha) can be set as an array in collections
  • pcolormesh has improved transparency handling by enabling snapping
  • IPython representations for Colormap objects
  • Colormap.set_extremes and Colormap.with_extremes
  • Get under/over/bad colors of Colormap objects
  • New cm.unregister_cmap function
  • New CenteredNorm for symmetrical data around a center
  • New FuncNorm for arbitrary normalizations
  • GridSpec-based colorbars can now be positioned above or to the left of the main axes
• Titles, ticks, and labels
  • supxlabel and supylabel

... (truncated)

Commits

• 223c30a REL: v3.4.1
• cc45fb9 DOC: Update GitHub stats for 3.4.1.
• 1748e33 Merge branch 'v3.4.0-doc' into v3.4.x
• 17b3aa0 Merge pull request #19834 from QuLogic/backport-19812
• 92a59fd Merge pull request #19833 from meeseeksmachine/auto-backport-of-pr-19811-on-v...
• 040649d Backport PR #19812: FIX: size and color rendering for Path3DCollection
• 6e6fcf4 Backport PR #19811: Fix Inkscape cleanup at exit on Windows.
• 6547ba2 Merge pull request #19816 from QuLogic/fix-scatter-legend
• 3bfe69c Merge pull request #19830 from meeseeksmachine/auto-backport-of-pr-19824-on-v...
• ebc9277 Merge pull request #19829 from meeseeksmachine/auto-backport-of-pr-19822-on-v...
• Additional commits viewable in compare view

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