Extend compat for StatsBase to include v0.34

[ablaom]

Evidently, CompatHelper needs a kick.

This is holding up downstream packages updates. See, e.g. issue linked below.

Thanks in advance.

[ablaom]

@aviks Sorry to nag, but this holding up MLJText.jl (see also https://github.com/alan-turing-institute/MLJ.jl/issues/1022)

[aviks]

Fixed via #268 and https://github.com/JuliaRegistries/General/pull/84210

[ablaom]

Thank you ❤️