Description

This pull request is to address a change in the Matplotlib Axes.__init__ signature. The change in this PR should be backwards compatible with older Matplotlib versions, however, it will break code which initialises WCSAxes with positional arguments for wcs etc. If that's an issue, it should be possible to "clean" *args before passing it to Axes.

Fixes #13873

Checklist for package maintainer(s)

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• Do the proposed changes actually accomplish desired goals?
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