Bump setuptools-rust from 1.8.0 to 1.8.1 in /.github/requirements #716

Job	Run time
sdists	1m 8s
3.11 ABI cp37 macOS -arch x86_64 -arch arm64	2m 9s
3.11 win32 cp37	4m 15s
3.11 ABI cp37 macOS -arch x86_64	1m 43s
cp311-cp311 for manylinux2014_x86_64	1m 57s
3.11 win64 cp37	4m 3s
pypy-3.9 ABI macOS -arch x86_64	1m 57s
cp311-cp311 for manylinux_2_28_x86_64	1m 50s
pypy-3.9 win64	4m 55s
pypy-3.10 ABI macOS -arch x86_64	1m 59s
cp311-cp311 for musllinux_1_1_x86_64	3m 2s
pypy-3.10 win64	4m 49s
cp311-cp311 for musllinux_1_2_x86_64	2m 58s
cp311-cp311 for manylinux2014_aarch64	4m 15s
cp311-cp311 for manylinux_2_28_aarch64	4m 4s
cp311-cp311 for musllinux_1_1_aarch64	3m 28s
cp311-cp311 for musllinux_1_2_aarch64	3m 19s
pp39-pypy39_pp73 for manylinux_2_28_x86_64	2m 44s
pp39-pypy39_pp73 for manylinux_2_28_aarch64	4m 20s
pp310-pypy310_pp73 for manylinux_2_28_x86_64	2m 36s
pp310-pypy310_pp73 for manylinux_2_28_aarch64	4m 12s
	1h 5m 43s

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