MAINT: remove `TypeAlias` #370

Job	Run time
style / Determine skipped pre-commit hooks	8s
pytest / Determine job matrix	6s
doc / linkcheck / Check external links	56s
doc / nb / Execute and build documentation	56s
pytest / Run unit tests (3.10, ubuntu-22.04)	1m 32s
pytest / Run unit tests (3.11, ubuntu-22.04)	1m 13s
pytest / Run unit tests (3.12, ubuntu-22.04)	1m 36s
pytest / Run unit tests (3.7, ubuntu-22.04)	1m 57s
pytest / Run unit tests (3.8, ubuntu-22.04)	1m 38s
pytest / Run unit tests (3.9, ubuntu-22.04, qrules)	4m 11s
pytest / Run unit tests (3.9, macos-12)	3m 40s
style / Run local pre-commit hooks	55s
style / Run taplo through pre-commit	21s
doc / Upload to GitHub Pages	0s
style / Push changes	0s
	19m 9s

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