fix: Fix gather_every for Scalar

[ritchie46]

fixes #19957

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.47%. Comparing base (3fad074) to head (9373fbf).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #19964      +/-   ##
==========================================
- Coverage   79.47%   79.47%   -0.01%     
==========================================
  Files        1555     1555              
  Lines      216318   216322       +4     
  Branches     2456     2456              
==========================================
- Hits       171919   171916       -3     
- Misses      43841    43848       +7     
  Partials      558      558              

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