Merge pull request #281 from SpiNNakerManchester/download_region #670

Job	Run time
call / tests (windows-latest, 3.12, tests)	2m 7s
call / tests (windows-2019, 3.8, tests)	3m 12s
call / checks (ubuntu-latest, 3.13)	3s
call / tests (macos-latest, 3.12, tests)	55s
call / checks (ubuntu-24.04, 3.11)	1m 35s
call / tests (macos-12, 3.8, tests)	1m 48s
call / checks (ubuntu-latest, 3.10)	1m 25s
call / checks (ubuntu-22.04, 3.9)	1m 29s
call / checks (ubuntu-20.04, 3.8)	1m 57s
call / validate (ubuntu-latest, 3.12, validate)	2m 17s
	16m 48s

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