Fix CI test failing in `stable/2.8.x` #11788

Job	Run time
Code style (flake8)	47s
Check code formatting with black	47s
Check import sorting	1m 18s
Lint dependencies	5s
Check for model changes not present in the migrations or default_admin_index fixture	1m 26s
Type checking (Pyright)	34s
	4m 57s

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