fix(rust): Fix minor histogram issues

[mcrumiller]

Closes #21082 and closes #20879.

Minor fixes:

1. Ensure upper breakpoint is equal to upper value when bins are auto-computed (due to floating point issues, sometimes the max value would be e.g. 7.0 and the upper bin limit would be 6.999999...).
2. NaN values were not being skipped and sometimes fell into the default logical path which incremented a bucket.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.27%. Comparing base (a578d51) to head (4ca7f87).
Report is 7 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #21088   +/-   ##
=======================================
  Coverage   79.27%   79.27%           
=======================================
  Files        1586     1586           
  Lines      225676   225681    +5     
  Branches     2588     2588           
=======================================
+ Hits       178894   178901    +7     
+ Misses      46192    46190    -2     
  Partials      590      590           

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