feat: add `stats/base/dists/kumaraswamy/stdev` #17372

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Update copyright header years	0s
Check for required files	0s
Merge changes from develop branch into this PR	0s
Print a list of available slash commands	0s
Rebase this PR on top of develop branch	0s
Remove in-progress label	0s
Add initial reaction	-7s
Auto-fix lint errors	-7s
	-14s

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