fix for Grouping() with latest CategoricalArrays

[palday]

• add entry in NEWS.md
• after opening this PR, add a reference and run docs/NEWS-update.jl to update the cross-references.
• I've bumped the version appropriately

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.45%. Comparing base (46b5900) to head (6f93691).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #860   +/-   ##
=======================================
  Coverage   95.45%   95.45%           
=======================================
  Files          38       38           
  Lines        3675     3676    +1     
=======================================
+ Hits         3508     3509    +1     
  Misses        167      167           

Flag	Coverage Δ
current	95.15% <100.00%> (+<0.01%)	⬆️
minimum	95.45% <100.00%> (+<0.01%)	⬆️

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[dmbates]

Always happens - as soon as you release a version a new change is required.