[Debian-astro-maintainers] Bug#1064858: python-astroplan-doc: please make the package build reproducible.

[James Addison]

Followup-For: Bug #1064858
Control: forwarded -1 https://salsa.debian.org/debian-astro-team/astroplan/-/merge_requests/2

Merge request opened; it appears that there is one more reproducibiliy issue
remaining in the SVG output from matplotlib: the ID generation scheme for
some clipPath elements varies between builds.  Some further investigation of
this is required.