feat: add `stats/base/ndarray/svariance` #25069

Job	Run time
Check for required files	0s
Update copyright header years	-1s
Rebase this PR on top of develop branch	-1s
Auto-fix lint errors	-1s
Merge changes from develop branch into this PR	-1s
Remove in-progress label	-1s
Manage labels	-7s
	-12s

Provide feedback