Update black requirement from ~=24.4 to ~=24.8 #880

Job	Run time
cwl-utils release test	5m 2s
CI linters via Tox (lint-readme)	22s
CI tests via Tox (3, 8, lint)	22s
CI linters via Tox (pydocstyle)	18s
CI tests via Tox (3, 8, unit)	2m 54s
CI tests via Tox (3, 8, bandit)	34s
CI tests via Tox (3, 8, mypy)	28s
CI tests via Tox (3, 9, lint)	21s
CI tests via Tox (3, 9, unit)	2m 4s
CI tests via Tox (3, 9, bandit)	31s
CI tests via Tox (3, 9, mypy)	38s
CI tests via Tox (3, 10, lint)	26s
CI tests via Tox (3, 10, unit)	2m 2s
CI tests via Tox (3, 10, bandit)	30s
CI tests via Tox (3, 10, mypy)	37s
CI tests via Tox (3, 11, lint)	15s
CI tests via Tox (3, 11, unit)	1m 57s
CI tests via Tox (3, 11, bandit)	23s
CI tests via Tox (3, 11, mypy)	37s
CI tests via Tox (3, 12, lint)	20s
CI tests via Tox (3, 12, unit)	2m 26s
CI tests via Tox (3, 12, bandit)	26s
CI tests via Tox (3, 12, mypy)	46s
	24m 19s

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