Tests

[MNT] Fix race condition in `OpenMLSplit._from_arff_file` (#1656) #2541

Job	Run time
(windows-latest, Py, sk0.24.*, sk-only:false)	3s
(ubuntu-latest, Py3.8, sk0.23.1, sk-only:false)	3s
docker	4s
(ubuntu-latest,Py3.10,sk1.5.*,sk-only:true)	1m 35s
(ubuntu-latest,Py3.10,sk1.3.*,sk-only:true)	1m 53s
(ubuntu-latest,Py3.11,sk1.3.*,sk-only:true)	1m 52s
(ubuntu-latest,Py3.10,sk1.7.*,sk-only:true)	2m 28s
(ubuntu-latest,Py3.10,sk1.6.*,sk-only:true)	2m 46s
(ubuntu-latest,Py3.11,sk1.6.*,sk-only:true)	2m 0s
(ubuntu-latest,Py3.10,sk1.4.*,sk-only:true)	1m 35s
(ubuntu-latest,Py3.11,sk1.5.*,sk-only:true)	2m 34s
(ubuntu-latest,Py3.12,sk1.6.*,sk-only:true)	1m 42s
(ubuntu-latest,Py3.12,sk1.4.*,sk-only:true)	2m 17s
(ubuntu-latest,Py3.13,sk1.5.*,sk-only:true)	2m 41s
(windows-latest,Py3.12,sk1.5.*,sk-only:false)	1h 16m 27s
(ubuntu-latest,Py3.14,sk1.7.*,sk-only:false)	1h 19m 42s
(ubuntu-latest,Py3.13,sk1.7.*,sk-only:true)	1m 39s
(ubuntu-latest,Py3.12,sk1.5.*,sk-only:false)	1h 16m 34s
(ubuntu-latest,Py3.12,sk1.7.*,sk-only:true)	2m 25s
(ubuntu-latest,Py3.12,sk1.5.*,sk-only:true)	2m 30s
(ubuntu-latest,Py3.14,sk1.5.*,sk-only:true)	4m 37s
(ubuntu-latest,Py3.12,sk1.3.*,sk-only:true)	1m 53s
(ubuntu-latest,Py3.11,sk1.7.*,sk-only:true)	3m 4s
(ubuntu-latest,Py3.11,sk1.4.*,sk-only:true)	1m 31s
(ubuntu-latest,Py3.13,sk1.6.*,sk-only:true)	2m 30s
(ubuntu-latest,Py3.12,sk1.5.,pd:2.,sk-only:false)	1h 19m 33s
(ubuntu-latest,Py3.14,sk1.6.*,sk-only:true)	4m 30s
(ubuntu-latest,Py3.14,sk1.7.*,sk-only:true)	1m 54s
	6h 2m 22s

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