Remove support for Python 3.7 (#315) #789

Job	Run time
Run custom pre-commit hooks (3.8, ubuntu-latest)	30s
pytest (3.8, ubuntu-latest)	21s
Run custom pre-commit hooks (3.8, windows-latest)	1m 39s
pytest (3.8, windows-latest)	48s
Run custom pre-commit hooks (3.12, ubuntu-latest)	28s
pytest (3.9, ubuntu-latest)	32s
Run custom pre-commit hooks (3.12, windows-latest)	2m 19s
pytest (3.9, windows-latest)	53s
pytest (3.10, ubuntu-latest)	18s
pytest (3.10, windows-latest)	51s
pytest (3.11, ubuntu-latest)	15s
pytest (3.11, windows-latest)	1m 4s
pytest (3.12, ubuntu-latest)	20s
pytest (3.12, windows-latest)	50s
pytest (3.13, ubuntu-latest)	28s
pytest (3.13, windows-latest)	1m 47s
pytest (3.14, ubuntu-latest)	26s
pytest (3.14, windows-latest)	2m 22s
Call reusable workflow / Build distribution package	13s
Call reusable workflow / Run `pylint` & `safety`	23s
Call reusable workflow / Run `pre-commit`	49s
Call reusable workflow / Build Documentation	22s
	17m 58s

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