test

Refactor project state management to use Salsa #705

Job	Run time
generate-matrix	1m 49s
Python 3.10, Django 4.2 (ubuntu-latest)	2m 41s
Python 3.10, Django 5.1 (ubuntu-latest)	2m 46s
Python 3.11, Django 4.2 (ubuntu-latest)	2m 41s
Python 3.10, Django 5.2 (ubuntu-latest)	2m 42s
Python 3.9, Django 4.2 (ubuntu-latest)	2m 52s
Python 3.11, Django 5.2 (ubuntu-latest)	2m 47s
Python 3.11, Django 5.1 (ubuntu-latest)	2m 45s
Python 3.13, Django 5.1 (ubuntu-latest)	2m 50s
Python 3.12, Django 5.2 (ubuntu-latest)	2m 36s
Python 3.13, Django 5.2 (ubuntu-latest)	2m 41s
Python 3.13, Django main (ubuntu-latest)	2m 56s
Python 3.12, Django 4.2 (ubuntu-latest)	2m 39s
Python 3.13, Django 4.2 (ubuntu-latest)	2m 51s
Python 3.12, Django 5.1 (ubuntu-latest)	2m 46s
Python 3.12, Django main (ubuntu-latest)	2m 45s
tests	4s
	43m 11s

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