Tests

[MNT] extend CI to newer python versions, deprecate python versions 3.8, 3.9 after EOL, marking further failing tests as `xfail` #1633

Job	Run time
(ubuntu-latest, Py3.8, sk0.23.1, sk-only:false)	2s
docker	2s
(windows-latest, Py, sk0.24.*, sk-only:false)	3s
(ubuntu-latest, Py3.10, sk1.6.*, sk-only:true)	4m 14s
(ubuntu-latest, Py3.10, sk1.7.*, sk-only:true)	4m 10s
(ubuntu-latest, Py3.10, sk1.5.*, sk-only:true)	3m 33s
(ubuntu-latest, Py3.11, sk1.3.*, sk-only:true)	4m 10s
(ubuntu-latest, Py3.10, sk1.4.*, sk-only:true)	3m 23s
(ubuntu-latest, Py3.12, sk1.5.*, sk-only:true)	4m 5s
(ubuntu-latest, Py3.12, sk1.3.*, sk-only:true)	4m 13s
(ubuntu-latest, Py3.12, sk1.6.*, sk-only:true)	3m 46s
(ubuntu-latest, Py3.11, sk1.4.*, sk-only:true)	4m 10s
(ubuntu-latest, Py3.12, sk1.4.*, sk-only:true)	4m 5s
(ubuntu-latest, Py3.13, sk1.7.*, sk-only:true)	4m 8s
(ubuntu-latest, Py3.12, sk1.5.*, sk-only:false)	5m 31s
(ubuntu-latest, Py3.13, sk1.5.*, sk-only:true)	3m 49s
(ubuntu-latest, Py3.13, sk1.6.*, sk-only:true)	4m 11s
(ubuntu-latest, Py3.12, sk1.7.*, sk-only:true)	3m 49s
(ubuntu-latest, Py3.10, sk1.3.*, sk-only:true)	4m 13s
(ubuntu-latest, Py3.11, sk1.5.*, sk-only:true)	4m 11s
(ubuntu-latest, Py3.11, sk1.6.*, sk-only:true)	4m 13s
(windows-latest, Py3.12, sk1.5.*, sk-only:false)	11m 16s
(ubuntu-latest, Py3.11, sk1.7.*, sk-only:true)	3m 19s
	1h 28m 36s

Provide feedback