feat: add `math/base/special/round2f` #30571

Job	Run time
Add initial reaction	5s
Update copyright header years	0s
Auto-fix lint errors / Fix lint errors	3s
Print a list of available slash commands	0s
Rebase this PR on top of develop branch	0s
Merge changes from develop branch into this PR	0s
Check for required files	0s
Post a comment with make command instructions	0s
Remove in-progress label	7s
	15s

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