Tests

[ENH] Added `ReprMixin` to share `repr` formatting #1740

Job	Run time
docker	3s
(ubuntu-latest, Py3.8, sk0.23.1, sk-only:false)	2s
(windows-latest, Py, sk0.24.*, sk-only:false)	3s
(ubuntu-latest,Py3.10,sk1.4.*,sk-only:true)	58s
(ubuntu-latest,Py3.10,sk1.7.*,sk-only:true)	1m 1s
(ubuntu-latest,Py3.11,sk1.3.*,sk-only:true)	56s
(ubuntu-latest,Py3.10,sk1.3.*,sk-only:true)	53s
(ubuntu-latest,Py3.10,sk1.6.*,sk-only:true)	1m 3s
(ubuntu-latest,Py3.13,sk1.6.*,sk-only:true)	1m 6s
(ubuntu-latest,Py3.12,sk1.5.*,sk-only:false)	3h 15m 49s
(ubuntu-latest,Py3.13,sk1.7.*,sk-only:true)	59s
(ubuntu-latest,Py3.11,sk1.4.*,sk-only:true)	58s
(ubuntu-latest,Py3.10,sk1.5.*,sk-only:true)	1m 2s
(ubuntu-latest,Py3.11,sk1.5.*,sk-only:true)	1m 1s
(ubuntu-latest,Py3.14,sk1.7.*,sk-only:false)	1h 21m 39s
(ubuntu-latest,Py3.12,sk1.7.*,sk-only:true)	1m 3s
(ubuntu-latest,Py3.12,sk1.5.*,sk-only:true)	1m 28s
(ubuntu-latest,Py3.14,sk1.5.*,sk-only:true)	4m 19s
(ubuntu-latest,Py3.14,sk1.6.*,sk-only:true)	4m 27s
(ubuntu-latest,Py3.12,sk1.6.*,sk-only:true)	1m 2s
(windows-latest,Py3.12,sk1.5.*,sk-only:false)	4h 59m 39s
(ubuntu-latest,Py3.11,sk1.6.*,sk-only:true)	53s
(ubuntu-latest,Py3.11,sk1.7.*,sk-only:true)	59s
(ubuntu-latest,Py3.12,sk1.3.*,sk-only:true)	1m 3s
(ubuntu-latest,Py3.12,sk1.4.*,sk-only:true)	1m 8s
(ubuntu-latest,Py3.14,sk1.7.*,sk-only:true)	1m 9s
(ubuntu-latest,Py3.13,sk1.5.*,sk-only:true)	1m 6s
	10h 5m 49s

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