Test

Merge pull request #5439 from antonymilne/autocolorscale #51

Job	Run time
Optional tests (Python 3.9, pandas 1)	3m 32s
Optional tests (Kaleido only), Kaleido v0 (Python 3.12, kaleido 0.2.1)	32s
Core tests (Python 3.10)	24s
Core tests (Python 3.13)	25s
Core tests (Python 3.9)	30s
Core tests (Python 3.11)	19s
Optional tests (Python 3.11, pandas 2)	2m 56s
Optional tests (Python 3.10)	3m 30s
Optional tests (Python 3.11)	3m 3s
Optional tests (Python 3.13)	3m 5s
Optional tests (Python 3.8)	3m 35s
Core tests (Python 3.12)	21s
Core tests (Python 3.8)	29s
Optional tests (Python 3.9)	3m 32s
Optional tests (Python 3.12)	2m 51s
	29m 4s

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