Bump setuptools from 70.0.0 to 78.1.1 #992

Job	Run time
mypy	26s
sdist	40s
ruff	6s
tox (windows-latest)	2m 7s
tox (ubuntu-latest)	1m 47s
linux-wheels (x86_64, cp38-manylinux*)	2m 6s
test-docs	3m 25s
linux-wheels (x86_64, pp38-manylinux*)	2m 10s
parse_sdl (windows-latest, 2.0.14)	40s
parse_sdl (windows-latest, 2.0.16)	45s
parse_sdl (macos-latest, 2.0.14)	23s
linux-wheels (aarch64, cp38-manylinux*)	12m 25s
build (windows-latest, 3.8, x64)	41s
linux-wheels (aarch64, pp38-manylinux*)	11m 14s
build (windows-latest, pypy-3.8, x64)	43s
build (ubuntu-latest, pypy-3.8, x64)	58s
build (ubuntu-latest, 3.8, x64)	2m 3s
parse_sdl (macos-latest, 2.0.16)	22s
parse_sdl (macos-latest, 2.30.0)	25s
parse_sdl (windows-latest, 2.30.0)	39s
build (windows-latest, pypy-3.8, x86)	1m 8s
build-macos (cp38-*_universal2)	4m 56s
build (windows-latest, 3.8, x86)	41s
build-macos (pp38-*)	3m 58s
publish	0s
	54m 48s

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