Add isort dev dependency and enable isort in ci-cd #700

Job	Run time
Testing on Python 3.8 (ubuntu-latest)	2m 59s
Testing on Python 3.8 (macOS-latest)	5m 28s
linters (3.9, ubuntu-latest)	1m 56s
Testing on Python 3.8 (windows-latest)	3m 14s
Testing on Python 3.9 (ubuntu-latest)	2m 42s
Testing on Python 3.9 (macOS-latest)	3m 45s
Testing on Python 3.9 (windows-latest)	4m 28s
Testing on Python 3.10 (ubuntu-latest)	3m 0s
Testing on Python 3.10 (macOS-latest)	3m 7s
Testing on Python 3.10 (windows-latest)	3m 17s
Testing on Python 3.11 (ubuntu-latest)	3m 3s
Testing on Python 3.11 (macOS-latest)	3m 12s
Testing on Python 3.11 (windows-latest)	4m 28s
	44m 39s

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