fix(tesseract): MultiStage group_by and reduce_by now work with views

[waralexrom]

Check List

• Tests have been run in packages where changes made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.18%. Comparing base (a35a477) to head (3f0594e).
Report is 22 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #9710   +/-   ##
=======================================
  Coverage   84.18%   84.18%           
=======================================
  Files         230      230           
  Lines       85149    85149           
=======================================
+ Hits        71680    71684    +4     
+ Misses      13469    13465    -4     

Flag	Coverage Δ
cubesql	84.18% <ø> (+<0.01%)	⬆️

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[KSDaemon]

👍🏻 LGTM!