Bump setuptools from 68.2.2 to 70.0.0 #1020

Job	Run time
linters (3.9, ubuntu-latest)	2m 26s
Testing on Python 3.8 (ubuntu-latest)	1m 44s
Testing on Python 3.8 (macos-13)	4m 26s
Testing on Python 3.8 (windows-2019)	4m 11s
Testing on Python 3.9 (ubuntu-latest)	1m 50s
Testing on Python 3.9 (macos-13)	2m 6s
Testing on Python 3.9 (windows-2019)	4m 14s
Testing on Python 3.10 (ubuntu-latest)	2m 2s
Testing on Python 3.10 (macos-13)	2m 9s
Testing on Python 3.10 (windows-2019)	4m 17s
Testing on Python 3.11 (ubuntu-latest)	1m 51s
Testing on Python 3.11 (macos-13)	2m 20s
Testing on Python 3.11 (windows-2019)	2m 56s
Testing on Python 3.12 (ubuntu-latest)	2m 3s
Testing on Python 3.12 (macos-13)	2m 43s
Testing on Python 3.12 (windows-2019)	5m 40s
	46m 58s

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