Refactor grid shuffle #2013

Job	Run time
Test and lint (ubuntu-latest, 3.8)	54s
Check Readme is not outdated (3.8)	25s
Test and lint (ubuntu-latest, 3.9)	58s
Test and lint (ubuntu-latest, 3.10)	56s
Check code formatting with ruff and mypy + tests (3.8)	37s
Test and lint (ubuntu-latest, 3.11)	57s
Test and lint (ubuntu-latest, 3.12)	1m 8s
Test and lint (windows-latest, 3.8)	2m 53s
Test and lint (windows-latest, 3.9)	3m 24s
Test and lint (windows-latest, 3.10)	3m 32s
Test and lint (windows-latest, 3.11)	3m 51s
Test and lint (windows-latest, 3.12)	2m 31s
Test and lint (macos-latest, 3.8)	2m 11s
Test and lint (macos-latest, 3.9)	2m 10s
Test and lint (macos-latest, 3.10)	1m 27s
Test and lint (macos-latest, 3.11)	1m 33s
Test and lint (macos-latest, 3.12)	2m 8s
	31m 35s

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