Tests

[ENH] Added `ReprMixin` to share `repr` formatting #1694

Job	Run time
docker	3s
(ubuntu-latest, Py3.8, sk0.23.1, sk-only:false)	3s
(windows-latest, Py, sk0.24.*, sk-only:false)	4s
(ubuntu-latest,Py3.10,sk1.6.*,sk-only:true)	6m 23s
(ubuntu-latest,Py3.11,sk1.5.*,sk-only:true)	6m 25s
(ubuntu-latest,Py3.10,sk1.4.*,sk-only:true)	6m 17s
(ubuntu-latest,Py3.11,sk1.7.*,sk-only:true)	6m 24s
(ubuntu-latest,Py3.10,sk1.7.*,sk-only:true)	6m 19s
(ubuntu-latest,Py3.10,sk1.3.*,sk-only:true)	6m 18s
(ubuntu-latest,Py3.11,sk1.6.*,sk-only:true)	6m 16s
(ubuntu-latest,Py3.10,sk1.5.*,sk-only:true)	6m 26s
(ubuntu-latest,Py3.12,sk1.3.*,sk-only:true)	6m 29s
(ubuntu-latest,Py3.12,sk1.4.*,sk-only:true)	6m 26s
(ubuntu-latest,Py3.11,sk1.3.*,sk-only:true)	1m 28s
(ubuntu-latest,Py3.11,sk1.4.*,sk-only:true)	1m 26s
(windows-latest,Py3.12,sk1.5.*,sk-only:false)	28m 42s
(ubuntu-latest,Py3.13,sk1.5.*,sk-only:true)	6m 31s
(ubuntu-latest,Py3.12,sk1.5.*,sk-only:true)	6m 23s
(ubuntu-latest,Py3.14,sk1.5.*,sk-only:true)	6m 44s
(ubuntu-latest,Py3.14,sk1.7.*,sk-only:true)	6m 26s
(ubuntu-latest,Py3.12,sk1.5.*,sk-only:false)	21m 52s
(ubuntu-latest,Py3.13,sk1.7.*,sk-only:true)	6m 21s
(ubuntu-latest,Py3.13,sk1.6.*,sk-only:true)	6m 20s
(ubuntu-latest,Py3.12,sk1.7.*,sk-only:true)	6m 32s
(ubuntu-latest,Py3.14,sk1.7.*,sk-only:false)	21m 33s
(ubuntu-latest,Py3.12,sk1.6.*,sk-only:true)	6m 21s
(ubuntu-latest,Py3.14,sk1.6.*,sk-only:true)	6m 46s
	3h 17m 18s

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