Test

Merge pull request #203 from vfdev-5:reenable-mt-tests #647

Job	Run time
Python 3.13 with free-threading	2m 26s
ubuntu-latest Python 3.9	1m 8s
Python 3.13 with nightly numpy	1m 16s
Python 3.9 with oldest supported numpy	1m 15s
ubuntu-latest Python 3.10	1m 10s
ubuntu-latest Python 3.11	1m 11s
lint	8s
ubuntu-latest Python 3.12	1m 11s
ubuntu-latest Python 3.13	1m 20s
macos-14 Python 3.12	1m 17s
windows-2019 Python 3.12	1m 54s
	14m 16s

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