CompatHelper: bump compat for StatsBase to 0.34, (keep existing compat)

[github-actions[bot]]

This pull request changes the compat entry for the StatsBase package from 0.32,0.33 to 0.32,0.33, 0.34. This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry. It is your responsibility to make sure that your package tests pass before you merge this pull request.

[codecov-commenter]

Codecov Report

Merging #511 (b88e1da) into dev (5bf6f78) will decrease coverage by 0.69%. The diff coverage is n/a.

:mega: This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more

@@            Coverage Diff             @@
##              dev     #511      +/-   ##
==========================================
- Coverage   76.96%   76.28%   -0.69%     
==========================================
  Files          16       16              
  Lines        1155     1105      -50     
==========================================
- Hits          889      843      -46     
+ Misses        266      262       -4     

see 11 files with indirect coverage changes