Tim Duesterhus 081091187e CI: Reformat matrix.py using black
The initial version of matrix.py was formatted using `black` [1], but with all
the later changes, the formatting diverged quite a bit. This patch reformats
the script using black, fixing the indentation of some statements and
shortening overlong lines.

[1] https://github.com/psf/black
2023-01-03 16:28:34 +01:00
..
2023-01-03 16:28:34 +01:00